Slope-Intercept Form of a Line: Assignment 4.7 (10 reviews) The graph of the function f (x) = x is dashed and the graph of the transformed function with an input of f (x - c) is solid. Use the slider to change the value of c. How does changing the value of c affect the graph? If the value of c is increased from 0, the graph __________________ Line AB passes through points A (-6, 6) and B (12, 3). If the equation of the line is written in slope-intercept form, y = mx + b, then m = - 1/6 and b = _. 5. We have an expert-written solution to this problem! The cost in dollars, y, of a large pizza with x toppings from Pat's Pizzeria can be modeled by a linear function. Examples of Applying the Concept of Slope-Intercept Form of a Line. Example 1: Write the equation of the line in slope-intercept form with a slope of – \,5 –5 and a y y-intercept of 3 3. The needed information to write the equation of the line in the form y = mx + b y = mx + b are clearly given in the problem since. Aug 11, 2023 · No, standard form, and slope-intercept form are two different ways of describing a line: Slope intercept form reads y = mx + b, where m is the slope (steepness) of the line, and b is the y-intercept, i.e., the value at which the line intersects the vertical axis. For example, y = -2x + 3. Slope-Intercept Form The Slope-Intercept Form of an equation of a line is y = mx + b, where m is the slope of the line and (0, b) is the y-intercept. Example 3: Graph y = -2x +1 Steps: 1. Plot the y-intercept 2. Use the slope (rise/run) 3. Draw a line through the two points You Try It! Graph the equation 3.) Graph y = ½ x – 4 are real numbers, 𝑚is the slope, and 𝑏is the -intercept of the line Forms of Linear Equations The equation of a line can be written in different forms. Standard form of a linear equation + = 8 −3 =7 ≥ , ≠Both 0 , , = W 2K −5 + Slope-intercept form of a linear equation =𝑚 +𝑏 = Point-slope form of a linear equation 1. Find the slope of the line connecting these points. -2. Find the slope of the line connecting these points. Slope. The measure of the steepness of a line. Slope intercept form. Up or right. Down or left. ID: A 1 Linear Functions Practice Quiz Answer Section 1. ANS: D PTS: 1 DIF: L3 REF: 5-1 Rate of Change and Slope OBJ: 5-1.1 To find rates of change from tables Study with Quizlet and memorize flashcards containing terms like Which of the following are possible slopes for the graph of a linear function?, Find the slope of the line on the graph. Reduce all fractional answers to lowest terms. (-2, -2) (2 ,2), Find the slope of the line on the graph. Reduce all fractional answers to lowest terms. (-1, -2) (1, 2) and more. Slope Intercept Form x Intercept. We can write the formula for the slope-intercept form of the equation of line L whose slope is m and x-intercept d as: y = m (x – d) Here, m = Slope of the line. d = x-intercept of the line. Sometimes, the slope of a line may be expressed in terms of tangent angle such as: m = tan θ. What is the slope of the line represented by the equation f(t)=2t−6? The slope is 2 and the y-intercept is −6. On a number line, a number, b, is located the same distance from 0 as another number, a, but in the opposite direction. 12 Questions Show answers. Question 1. SURVEY. 120 seconds. Q. What is the slope of the line represented by the equation y = 3x + 6? answer choices. 6. 3. Slope-Intercept Form of a Line The Slope and 𝑦-Intercept of a Line The equation of a ... A pipe cleaner lay across a wire shelf. The wires that make up the shelf are parallel, and the pipe cleaner is a transversal. The parallel wires are labeled a, b, and, c, and the angles are labeled with numbers. The measure of one angle is 130°. Which statement is true regarding the 130° angle and angle 3? are real numbers, 𝑚is the slope, and 𝑏is the -intercept of the line Forms of Linear Equations The equation of a line can be written in different forms. Standard form of a linear equation + = 8 −3 =7 ≥ , ≠Both 0 , , = W 2K −5 + Slope-intercept form of a linear equation =𝑚 +𝑏 = Point-slope form − 1=𝑚( − 1) −4= 1 Study with Quizlet and memorize flashcards containing terms like Which of the following are possible slopes for the graph of a linear function?, Find the slope of the line on the graph. Reduce all fractional answers to lowest terms. (-2, -2) (2 ,2), Find the slope of the line on the graph. Reduce all fractional answers to lowest terms. (-1, -2) (1, 2) and more. Writing and Graphing Two-Variable Linear Inequalities Becky saved $30 of her birthday money to buy paintbrushes and paint for art class. A set of paintbrushes costs $5.00, and a sample paint kit costs $10. Jun 12, 2016 · The equitation of the lines represents the line by the set of points on which the line lies or passes through in the coordinate system. Here, (m) is the slope of the line and (b) is the y intercept. The equation of the slope-intercept form of the equation of a line is given as, This equation is need to be solved for b. Aug 13, 2023 · If you are given a point-slope form of a line, you can get the slope intercept by following these steps: Write down your point-slope form: y - b = m (x - a) Expand the right-hand side: y - b = mx - ma. Add b to both sides: y = mx - ma + b. This is slope-intercept form! The slope is m, and the intercept is -ma + b. The slope of a line is 2. The y-intercept of the line is -6. Which statements accurately describe how to graph the function? Locate the ordered pair (0, -6). From that point on the graph, move up 2, right 1 to locate the next ordered pair on the line. Draw a line through the two points. A sand dune stands 5 feet above sea level. Study with Quizlet and memorize flashcards containing terms like What is the slope of a line that is perpendicular to the line y = 1/2x + 5?, Which statement is true about the graphs of the two lines y=-8x-5/4 and y=1/8x+4/5 ?, What is the y-intercept of the equation of the line y=3/5x+10 that is perpendicular to the line and passes through the point (15,-5)? and more. What is the slope of the table? 4. What is the slope of the table? The y-coordinate of a point where a graph crosses the y-axis, the x-coordinate is zero. What does the y-intercept look like on a graph? 3. What is the y-intercept of the equation: y= 2x + 3. 0. ID: A 1 Linear Functions Practice Quiz Answer Section 1. ANS: D PTS: 1 DIF: L3 REF: 5-1 Rate of Change and Slope OBJ: 5-1.1 To find rates of change from tables Slope-Intercept Form The Slope-Intercept Form of an equation of a line is y = mx + b, where m is the slope of the line and (0, b) is the y-intercept. Example 3: Graph y = -2x +1 Steps: 1. Plot the y-intercept 2. Use the slope (rise/run) 3. Draw a line through the two points You Try It! Graph the equation 3.) Graph y = ½ x – 4 The slope of a line is 2. The y-intercept of the line is -6. Which statements accurately describe how to graph the function? Locate the ordered pair (0, -6). From that point on the graph, move up 2, right 1 to locate the next ordered pair on the line. Draw a line through the two points. A sand dune stands 5 feet above sea level. Question: Answer: B. m = 90 – 6d Question: What are the slope and y-intercept of the linear function graphed to the left? Answer: B. slope: -1/2; y-intercept: 1 Question: A leaf hangs from a branch 12 feet in the air. It falls to the ground at a rate of 0.25 feet per second. Which […] PDF Warm-Up Slope-Intercept Form Of A Line - Edgenuity Inc. The equation of a linear function in slope-intercept form is written as = +, where is the slope and is the -intercept of the line. = is the same as = + , where 1 is the slope and 0 is the -intercept. 15 Finding the Effect of -Intercept and Slope on the Graph of a Linear Function CHANGING THE Y-INTERCEPT What is the slope of the table? 4. What is the slope of the table? The y-coordinate of a point where a graph crosses the y-axis, the x-coordinate is zero. What does the y-intercept look like on a graph? 3. What is the y-intercept of the equation: y= 2x + 3. 0. The slope-intercept form of a linear equation is where one side contains just "y". So, it will look like: y = mx + b where "m" and "b" are numbers. This form of the equation is very useful. The coefficient of "x" (the "m" value) is the slope of the line. And, the constant (the "b" value) is the y-intercept at (0, b) These are the steps she plans to use: Step 1: Choose a point on the line, such as (2, 5).Step 2: Choose another point on the line, such as (1, 3).Step 3: Count units to determine the slope ratio. The line runs 1 unit to the right and rises 2 units up, so the slope is 1/2. Step 4: Substitute those values into the point-slope form. y-y^1 = m (x-x^1) Learn how to find the slope-intercept equation of a line from two points on that line. If you haven't read it yet, you might want to start with our introduction to slope-intercept form . Writing equations from y y y y -intercept and another point Identifying the Slope and y-Intercept Slope-intercept form of a linear function: y = mx + b • m represents the and is constant. • b represents the -intercept. Ways to write the slope: 2 1 1 2 −= = Given the following equation, locate the slope and y-intercept of the line. = − yx − 1 2 8 1 2 y = − x + The slope: m = −1 The y ... y=mx+b is called the slope-intercept form for the equation of a line; m is the slope and b is the y -intercept. Find the slope (m) and the y -intercept b of each of the following lines by rewriting the equation in the slope-intercept form, Then graph the line. 1. 2 x+3 y=3. 3 y=− 2 x+3. y=− 2 x+33. Jun 12, 2016 · The equitation of the lines represents the line by the set of points on which the line lies or passes through in the coordinate system. Here, (m) is the slope of the line and (b) is the y intercept. The equation of the slope-intercept form of the equation of a line is given as, This equation is need to be solved for b. These are the steps she plans to use: Step 1: Choose a point on the line, such as (2, 5).Step 2: Choose another point on the line, such as (1, 3).Step 3: Count units to determine the slope ratio. The line runs 1 unit to the right and rises 2 units up, so the slope is 1/2. Step 4: Substitute those values into the point-slope form. y-y^1 = m (x-x^1) Aug 11, 2023 · No, standard form, and slope-intercept form are two different ways of describing a line: Slope intercept form reads y = mx + b, where m is the slope (steepness) of the line, and b is the y-intercept, i.e., the value at which the line intersects the vertical axis. For example, y = -2x + 3. The forms y=mx+b and y=mx+a are essentially the same, except for the naming of the constant term. The form y=mx+b means slope m and y-intercept b; similarly, the form y=mx+a means slope m and y-intercept a. The form y=m (x-a) is essentially different from the other two forms, and means slope m and x-intercept (instead of y-intercept) a. How do you find the equation of a line? To find the equation of a line y=mx-b, calculate the slope of the line using the formula m = (y2 - y1) / (x2 - x1), where (x1, y1) and (x2, y2) are two points on the line. Substitute the value of the slope m to find b (y-intercept). There are three major forms of linear equations: point-slope form, standard form, and slope-intercept form. We review all three in this article. There are three main forms of linear equations. Slope-intercept. Point-slope. Standard. y = m x + b. y=\maroonC mx+\greenD b y = mx +b. y, equals, start color #ed5fa6, m, end color #ed5fa6, x, plus ... are real numbers, 𝑚is the slope, and 𝑏is the -intercept of the line Forms of Linear Equations The equation of a line can be written in different forms. Standard form of a linear equation + = 8 −3 =7 ≥ , ≠Both 0 , , = W 2K −5 + Slope-intercept form of a linear equation =𝑚 +𝑏 = Point-slope form of a linear equation Practice Problems. Write the slope intercept form for the lines below. Problem 5. A line with a slope of 2 and a y-intercept of 12. Problem 6. A line with a slope of 3 and a y-intercept of -5. Problem 7. A line with a slope of ½ and a y-intercept of 7. Worksheet (Worksheet with answer key on this page's topic) Identifying the Slope and y-Intercept Slope-intercept form of a linear function: y = mx + b • m represents the and is constant. • b represents the -intercept. Ways to write the slope: 2 1 1 2 −= = Given the following equation, locate the slope and y-intercept of the line. = − yx − 1 2 8 1 2 y = − x + The slope: m = −1 The y ... Jun 8, 2023 · The slope-intercept form of a line is a useful tool for graphing linear equations because it helps to easily determine the slope and y-intercept of the line. Edgenuity is an online educational platform that provides students with interactive courses and activities for various subjects. PDF Warm-Up Linear Functions - Edgenuity Inc. Linear Functions Point-slope form of a linear equation Write the equation in slope-intercept form. Point-Slope Form of Linear Equation 10 − 1=𝑚( − 1), where ( 1, 1) is a on the line and m is the . −5=2( −1) 𝑚=2 Point: ( , ) The equations −5=2 −1and =2 +3are equivalent equations. That The forms y=mx+b and y=mx+a are essentially the same, except for the naming of the constant term. The form y=mx+b means slope m and y-intercept b; similarly, the form y=mx+a means slope m and y-intercept a. The form y=m (x-a) is essentially different from the other two forms, and means slope m and x-intercept (instead of y-intercept) a. Find the y-intercept of the line that passes through the given point and has the given slope: (-2, -1); m= -3 Slope-Intercept Form of a Line The Slope and 𝑦-Intercept of a Line The equation of a ... 2 Identifying Slope and 𝒚-Intercept of a Line Slide Slope-Intercept Form of a Line Identify the slope and -intercept of the linear function in the equation Correct •The slope is , because that is the on the variable when the equation is solved for . •The -intercept is −2, because that is the term when the equation What is the slope of the table? 4. What is the slope of the table? The y-coordinate of a point where a graph crosses the y-axis, the x-coordinate is zero. What does the y-intercept look like on a graph? 3. What is the y-intercept of the equation: y= 2x + 3. 0. Study with Quizlet and memorize flashcards containing terms like Which of the following are possible slopes for the graph of a linear function?, Find the slope of the line on the graph. Reduce all fractional answers to lowest terms. (-2, -2) (2 ,2), Find the slope of the line on the graph. Reduce all fractional answers to lowest terms. (-1, -2) (1, 2) and more. How do you find the equation of a line? To find the equation of a line y=mx-b, calculate the slope of the line using the formula m = (y2 - y1) / (x2 - x1), where (x1, y1) and (x2, y2) are two points on the line. Substitute the value of the slope m to find b (y-intercept). The slope of a line is 2. The y-intercept of the line is -6. Which statements accurately describe how to graph the function? Locate the ordered pair (0, -6). From that point on the graph, move up 2, right 1 to locate the next ordered pair on the line. Draw a line through the two points. A sand dune stands 5 feet above sea level. Identify the slope. m = 6/3 or 2. Look at the graph on number 7. Count the rise over the run and identify the slope. m= - 3/1 or - 3. Graph the line that is represented with this equation. y = 1/3x -2. Compare your graph with your partner. Show me if you don't agree! Slope-Intercept Form The Slope-Intercept Form of an equation of a line is y = mx + b, where m is the slope of the line and (0, b) is the y-intercept. Example 3: Graph y = -2x +1 Steps: 1. Plot the y-intercept 2. Use the slope (rise/run) 3. Draw a line through the two points You Try It! Graph the equation 3.) Graph y = ½ x – 4 Terms in this set (13) The line represented by the equation 3x + 5y = 2 has a slope of -3/5. Which shows the graph of this equation? b. The equation of the graphed line is x+2y=5. What is the x-intercept of the graph? c. 5. Art and his friends spent $62 at the movies. Admission tickets cost $12 apiece, and a bucket of popcorn costs $7. Write the equation of the line with the given slope and y-intercept. m = undefined and b =11. x=11. Write the equation of the line with the given slope and y-intercept. Slope = 4/5 and y-intercept = 10. y= (4/5)x+10. Write the equation of the line that passes through the point with the given slope. (0,-5), slope = -5. Write the equation of the line with the given slope and y-intercept. m = undefined and b =11. x=11. Write the equation of the line with the given slope and y-intercept. Slope = 4/5 and y-intercept = 10. y= (4/5)x+10. Write the equation of the line that passes through the point with the given slope. (0,-5), slope = -5. In general, the slope intercept form assumes the formula: y = mx + b . Mnemonic: 'b' means where the line begins. y = 5x + 3 is an example of the Slope Intercept Form and represents the equation of a line with a slope of 5 and and a y-intercept of 3. y = −2x + 6 represents the equation of a line with a slope of −2 and and a y-intercept of 6. Slope-Intercept Form The Slope-Intercept Form of an equation of a line is y = mx + b, where m is the slope of the line and (0, b) is the y-intercept. Example 3: Graph y = -2x +1 Steps: 1. Plot the y-intercept 2. Use the slope (rise/run) 3. Draw a line through the two points You Try It! Graph the equation 3.) Graph y = ½ x – 4 Learn more about the two-point form here. Slope Intercept Form. The equation of the line making an intercept c on the y-axis and having slope m is given by: y = mx + c. Note: The value of c could be positive or negative since the intercept is drawn on the positive or negative side of the y-axis, respectively. Also, check: Slope intercept form ... We're asked to determine the intercepts of the graph described by the following linear equation: To find the y y -intercept, let's substitute \blue x=\blue 0 x = 0 into the equation and solve for y y: So the y y -intercept is \left (0,\dfrac {5} {2}\right) (0, 25). To find the x x -intercept, let's substitute \pink y=\pink 0 y = 0 into the ... Aug 11, 2023 · No, standard form, and slope-intercept form are two different ways of describing a line: Slope intercept form reads y = mx + b, where m is the slope (steepness) of the line, and b is the y-intercept, i.e., the value at which the line intersects the vertical axis. For example, y = -2x + 3. Which relationship has a zero slope? wrong. The graph shows the relationship between the volume of a rectangular prism and the volume of a square pyramid with an identical base and height. What is the slope of the line? 3. A line contains points M (1, 3) and N (5, 0). What is the slope of MN? -3/4. Slope-Intercept Form of a Line The Slope and 𝑦-Intercept of a Line The equation of a ... Study with Quizlet and memorize flashcards containing terms like What is the slope of a line that is perpendicular to the line y = 1/2x + 5?, Which statement is true about the graphs of the two lines y=-8x-5/4 and y=1/8x+4/5 ?, What is the y-intercept of the equation of the line y=3/5x+10 that is perpendicular to the line and passes through the point (15,-5)? and more. If you have an equation in slope-intercept form, you know both a point (the y intercept) and the slope, so it should be relatively easy to graph especially with a little practice. So if you have y=3x-4, the slope is 3=3/1, the y intercept is (0,-4). Which equation shows the point-slope form of the line that passes through (3, 2) and has a slope of 1/3 ? We have an expert-written solution to this problem! The equation of a linear function in point-slope form is y - y1 = m (x - x1). Harold correctly wrote the equation y = 3 (x - 7) using a point and the slope. Which point did Harold use? Practice Problems. Write the slope intercept form for the lines below. Problem 5. A line with a slope of 2 and a y-intercept of 12. Problem 6. A line with a slope of 3 and a y-intercept of -5. Problem 7. A line with a slope of ½ and a y-intercept of 7. Worksheet (Worksheet with answer key on this page's topic) Feb 28, 2018 · Find the slope of the line. we know that . the formula to calculate the slope between two points is equal to. Let. substitute the values. Step . with the slope m and the point find the equation of the line. we know that. the equation of the line in the point-slope form is equal to. substitute the values. therefore. the answer is Learn how to find the slope-intercept equation of a line from two points on that line. If you haven't read it yet, you might want to start with our introduction to slope-intercept form . Writing equations from y y y y -intercept and another point Learn how to find the slope-intercept equation of a line from two points on that line. If you haven't read it yet, you might want to start with our introduction to slope-intercept form . Writing equations from y y y y -intercept and another point Aug 13, 2023 · If you are given a point-slope form of a line, you can get the slope intercept by following these steps: Write down your point-slope form: y - b = m (x - a) Expand the right-hand side: y - b = mx - ma. Add b to both sides: y = mx - ma + b. This is slope-intercept form! The slope is m, and the intercept is -ma + b. How do you find the equation of a line? To find the equation of a line y=mx-b, calculate the slope of the line using the formula m = (y2 - y1) / (x2 - x1), where (x1, y1) and (x2, y2) are two points on the line. Substitute the value of the slope m to find b (y-intercept). are real numbers, 𝑚is the slope, and 𝑏is the -intercept of the line Forms of Linear Equations The equation of a line can be written in different forms. Standard form of a linear equation + = 8 −3 =7 ≥ , ≠Both 0 , , = W 2K −5 + Slope-intercept form of a linear equation =𝑚 +𝑏 = Point-slope form of a linear equation Learn more about the two-point form here. Slope Intercept Form. The equation of the line making an intercept c on the y-axis and having slope m is given by: y = mx + c. Note: The value of c could be positive or negative since the intercept is drawn on the positive or negative side of the y-axis, respectively. Also, check: Slope intercept form ... Find the y-intercept of the line that passes through the given point and has the given slope: (-2, -1); m= -3 Slope Intercept Form x Intercept. We can write the formula for the slope-intercept form of the equation of line L whose slope is m and x-intercept d as: y = m (x – d) Here, m = Slope of the line. d = x-intercept of the line. Sometimes, the slope of a line may be expressed in terms of tangent angle such as: m = tan θ. Write an equation of the line in point-slope, slope –intercept and standard form that passes through the given 2 points. 10.) (1, -2) and (-1, 3) 10. Terms in this set (22) What is slope-intercept form for equation of a line. y=mx+b. The b in y=mx+b is the. y-intercept (where the line crosses the y-axis) The m in the y=mx+b is the. slope of the line (rise over run) Slope formula. Example of undefined slope. Examples of Applying the Concept of Slope-Intercept Form of a Line. Example 1: Write the equation of the line in slope-intercept form with a slope of – \,5 –5 and a y y-intercept of 3 3. The needed information to write the equation of the line in the form y = mx + b y = mx + b are clearly given in the problem since. Study with Quizlet and memorize flashcards containing terms like What is the equation of the line that is parallel to the given line and passes through the point (−4,−6 )?, What is the equation of the line that is perpendicular to the given line and has an x-intercept of 6?, What is the equation, in point-slope form, of the line that is perpendicular to the given line and passes through ... Study with Quizlet and memorize flashcards containing terms like What is the slope of a line that is perpendicular to the line y = 1/2x + 5?, Which statement is true about the graphs of the two lines y=-8x-5/4 and y=1/8x+4/5 ?, What is the y-intercept of the equation of the line y=3/5x+10 that is perpendicular to the line and passes through the point (15,-5)? and more. Aug 11, 2023 · No, standard form, and slope-intercept form are two different ways of describing a line: Slope intercept form reads y = mx + b, where m is the slope (steepness) of the line, and b is the y-intercept, i.e., the value at which the line intersects the vertical axis. For example, y = -2x + 3.
Slope-Intercept Form of a Line: Assignment 4.7 (10 reviews) The graph of the function f (x) = x is dashed and the graph of the transformed function with an input of f (x - c) is solid. Use the slider to change the value of c. How does changing the value of c affect the graph? If the value of c is increased from 0, the graph __________________ . Dandb hours
Practice Problems. Write the slope intercept form for the lines below. Problem 5. A line with a slope of 2 and a y-intercept of 12. Problem 6. A line with a slope of 3 and a y-intercept of -5. Problem 7. A line with a slope of ½ and a y-intercept of 7. Worksheet (Worksheet with answer key on this page's topic) Write an equation of the line in point-slope, slope –intercept and standard form that passes through the given 2 points. 10.) (1, -2) and (-1, 3) 10. Write the equation of the line with the given slope and y-intercept. m = undefined and b =11. x=11. Write the equation of the line with the given slope and y-intercept. Slope = 4/5 and y-intercept = 10. y= (4/5)x+10. Write the equation of the line that passes through the point with the given slope. (0,-5), slope = -5. What is the slope of the line represented by the equation f(t)=2t−6? The slope is 2 and the y-intercept is −6. On a number line, a number, b, is located the same distance from 0 as another number, a, but in the opposite direction. Find the y-intercept of the line that passes through the given point and has the given slope: (-2, -1); m= -3 Which equation shows the point-slope form of the line that passes through (3, 2) and has a slope of 1/3 ? We have an expert-written solution to this problem! The equation of a linear function in point-slope form is y - y1 = m (x - x1). Harold correctly wrote the equation y = 3 (x - 7) using a point and the slope. Which point did Harold use? Study with Quizlet and memorize flashcards containing terms like Use the point-slope equation to identify the slope and the coordinates of a point on the line y - 4= 1/2 (x-1). The slope of the line is ______ A point on the line is ________, Which point-slope equation represents a line that passes through (3, -2) with a slope of -4/5, What is the equation of the line in point-slope form? y + 4 ... 1. Find the slope of the line connecting these points. -2. Find the slope of the line connecting these points. Slope. The measure of the steepness of a line. Slope intercept form. Up or right. Down or left. are real numbers, 𝑚is the slope, and 𝑏is the -intercept of the line Forms of Linear Equations The equation of a line can be written in different forms. Standard form of a linear equation + = 8 −3 =7 ≥ , ≠Both 0 , , = W 2K −5 + Slope-intercept form of a linear equation =𝑚 +𝑏 = Point-slope form of a linear equation Which equation shows the point-slope form of the line that passes through (3, 2) and has a slope of 1/3 ? We have an expert-written solution to this problem! The equation of a linear function in point-slope form is y - y1 = m (x - x1). Harold correctly wrote the equation y = 3 (x - 7) using a point and the slope. Which point did Harold use? The slope-intercept form of a linear equation is where one side contains just "y". So, it will look like: y = mx + b where "m" and "b" are numbers. This form of the equation is very useful. The coefficient of "x" (the "m" value) is the slope of the line. And, the constant (the "b" value) is the y-intercept at (0, b) .