Slope-Intercept Form - Worksheet 7 - 9th Grade

Medium

Identify slope and y-intercept, or write a linear equation from a slope and a point.

medium: Find the y-intercept from a slope and one point.

24 problems · 20-25 minutes · Skills: linear functions, slope, graphing

About This Worksheet

This medium-level worksheet contains 24 problems designed for 9th Grade students practicing slope-intercept form. Medium worksheets introduce larger numbers and varied question formats to deepen understanding and build fluency.

Understand coordinates and substitute values into a linear equation.

  • Identify slope and y-intercept, or write a linear equation from a slope and a point.
  • The y-intercept is the value of y when x is zero.

How to Solve: Worked Example

Example Problem: A line has slope 3 and passes through (2, 10). Find its equation.
Solution Steps:
  1. Use y = mx + b and substitute: 10 = 3 × 2 + b.
  2. Subtract 6: b = 4.
  3. Write y = 3x + 4. Check the point: 3 × 2 + 4 = 10.
Answer: y = 3x + 4
Tip: The y-intercept is the value of y when x is zero.
1
Write y = mx + b for a line with slope -4 through (2, 5).
2
Write y = mx + b for a line with slope -8 through (-2, 27).
3
Write y = mx + b for a line with slope -7 through (8, -41).
4
Write y = mx + b for a line with slope -1 through (2, -1).
5
Write y = mx + b for a line with slope 5 through (0, -3).
6
Write y = mx + b for a line with slope -2 through (-7, 13).
7
Write y = mx + b for a line with slope 6 through (-5, -34).
8
Write y = mx + b for a line with slope -6 through (-1, 5).
9
Write y = mx + b for a line with slope -7 through (5, -31).
10
Write y = mx + b for a line with slope 2 through (-4, 5).
11
Write y = mx + b for a line with slope -3 through (0, -6).
12
Write y = mx + b for a line with slope -3 through (6, -29).
13
Write y = mx + b for a line with slope -2 through (0, 15).
14
Write y = mx + b for a line with slope -4 through (1, 9).
15
Write y = mx + b for a line with slope -6 through (-5, 28).
16
Write y = mx + b for a line with slope 3 through (-6, -10).
17
Write y = mx + b for a line with slope 4 through (-2, 4).
18
Write y = mx + b for a line with slope 2 through (0, 10).
19
Write y = mx + b for a line with slope 5 through (-3, -1).
20
Write y = mx + b for a line with slope -5 through (8, -47).
21
Write y = mx + b for a line with slope -5 through (-4, 6).
22
Write y = mx + b for a line with slope 4 through (0, -9).
23
Write y = mx + b for a line with slope -1 through (-3, -2).
24
Write y = mx + b for a line with slope 6 through (3, 9).

Answer Key

1. y = -4x + 132. y = -8x + 113. y = -7x + 154. y = -1x + 15. y = 5x - 36. y = -2x - 17. y = 6x - 48. y = -6x - 19. y = -7x + 410. y = 2x + 1311. y = -3x - 612. y = -3x - 1113. y = -2x + 1514. y = -4x + 1315. y = -6x - 216. y = 3x + 817. y = 4x + 1218. y = 2x + 1019. y = 5x + 1420. y = -5x - 721. y = -5x - 1422. y = 4x - 923. y = -1x - 524. y = 6x - 9

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What skills does this functions & relations worksheet cover?

This worksheet focuses on linear functions, slope, graphing. It is designed for 9th Grade students and provides structured practice through varied problem types with a worked example to guide students before they begin.

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How many problems are on this worksheet?

This worksheet contains 24 problems. It typically takes 20-25 minutes to complete. An answer key with all solutions is included so parents and teachers can check work quickly.