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Year 11 Gradient and Linear Equations Worksheet — Level 1 — Practice Set 3 — Answers

Answer sheet with worked solutions for the Year 11 linear relationships & graphs worksheet.

Success TutoringWorksheetsAnswer sheetYear 11 · Mathematics · Linear Relationships & Graphs

Year 11 Gradient and Linear Equations Worksheet — Level 1 — Practice Set 3 — Answers

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

1.Find the gradient of the line through (−4, 1) and (−7, 7).

Answer: −2

  1. gradient = rise ÷ run = (7 − 1) ÷ (−7 − (−4))
  2. = 6 ÷ −3 = −2
2.Find the gradient of the line through (6, −6) and (5, −8).

Answer: 2

  1. gradient = rise ÷ run = (−8 − (−6)) ÷ (5 − 6)
  2. = −2 ÷ −1 = 2
3.Find the gradient of the line through (3, −5) and (8, −10).

Answer: −1

  1. gradient = rise ÷ run = (−10 − (−5)) ÷ (8 − 3)
  2. = −5 ÷ 5 = −1
4.For the line y = −5x + 6, write the gradient and the y-intercept.

Answer: gradient −5; y-intercept 6

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

5.Find the gradient of the line through (−3, −5) and (−1, −9).

Answer: −2

  1. gradient = rise ÷ run = (−9 − (−5)) ÷ (−1 − (−3))
  2. = −4 ÷ 2 = −2
6.Find the gradient of the line through (−4, 0) and (1, 10).

Answer: 2

  1. gradient = rise ÷ run = (10 − 0) ÷ (1 − (−4))
  2. = 10 ÷ 5 = 2
7.Find the gradient of the line through (2, −2) and (3, 0).

Answer: 2

  1. gradient = rise ÷ run = (0 − (−2)) ÷ (3 − 2)
  2. = 2 ÷ 1 = 2
8.For the line y = −2x − 4, write the gradient and the y-intercept.

Answer: gradient −2; y-intercept −4

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

9.For the line y = 4x − 9, write the gradient and the y-intercept.

Answer: gradient 4; y-intercept −9

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

10.Find the gradient of the line through (2, 4) and (5, 13).

Answer: 3

  1. gradient = rise ÷ run = (13 − 4) ÷ (5 − 2)
  2. = 9 ÷ 3 = 3
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