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9th Grade Slope and Linear Equations Worksheet — Level 1 — Practice Set 4 — Answers

Answer sheet with worked solutions for the 9th Grade linear relationships & graphs worksheet.

Success TutoringWorksheetsAnswer sheet9th Grade · Mathematics · Linear Relationships & Graphs

9th Grade Slope and Linear Equations Worksheet — Level 1 — Practice Set 4 — Answers

Show your work. Slope = rise ÷ run; the equation of a line can be written as y = (slope)x + (y-intercept).

1.For the line y = 3x − 1, write the slope and the y-intercept.

Answer: slope 3; y-intercept −1

In y = (slope)x + (y-intercept), the number multiplying x is the slope and the constant is where the line crosses the y-axis.

2.For the line y = 4x − 3, write the slope and the y-intercept.

Answer: slope 4; y-intercept −3

In y = (slope)x + (y-intercept), the number multiplying x is the slope and the constant is where the line crosses the y-axis.

3.For the line y = −5x − 3, write the slope and the y-intercept.

Answer: slope −5; y-intercept −3

In y = (slope)x + (y-intercept), the number multiplying x is the slope and the constant is where the line crosses the y-axis.

4.For the line y = 3x + 3, write the slope and the y-intercept.

Answer: slope 3; y-intercept 3

In y = (slope)x + (y-intercept), the number multiplying x is the slope and the constant is where the line crosses the y-axis.

5.Find the slope of the line through (2, 2) and (6, 6).

Answer: 1

  1. slope = rise ÷ run = (6 − 2) ÷ (6 − 2)
  2. = 4 ÷ 4 = 1
6.Find the slope of the line through (2, 5) and (4, 1).

Answer: −2

  1. slope = rise ÷ run = (1 − 5) ÷ (4 − 2)
  2. = −4 ÷ 2 = −2
7.Find the slope of the line through (−3, −3) and (−6, 3).

Answer: −2

  1. slope = rise ÷ run = (3 − (−3)) ÷ (−6 − (−3))
  2. = 6 ÷ −3 = −2
8.For the line y = −2x + 1, write the slope and the y-intercept.

Answer: slope −2; y-intercept 1

In y = (slope)x + (y-intercept), the number multiplying x is the slope and the constant is where the line crosses the y-axis.

9.For the line y = 6x + 7, write the slope and the y-intercept.

Answer: slope 6; y-intercept 7

In y = (slope)x + (y-intercept), the number multiplying x is the slope and the constant is where the line crosses the y-axis.

10.For the line y = x + 1, write the slope and the y-intercept.

Answer: slope 1; y-intercept 1

In y = (slope)x + (y-intercept), the number multiplying x is the slope and the constant is where the line crosses the y-axis.

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