8th Grade Slope and Linear Equations Worksheet — Level 1 — Practice Set 4 — Answers
Answer sheet with worked solutions for the 8th Grade linear relationships & graphs worksheet.
8th 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).
Answer: slope −1; y-intercept 0
In y = (slope)x + (y-intercept), the number multiplying x is the slope and the constant is where the line crosses the y-axis.
Answer: slope −4; 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.
Answer: slope 4; y-intercept 5
In y = (slope)x + (y-intercept), the number multiplying x is the slope and the constant is where the line crosses the y-axis.
Answer: −2
- slope = rise ÷ run = (−4 − (−2)) ÷ (−5 − (−6))
- = −2 ÷ 1 = −2
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.
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.
Answer: −3
- slope = rise ÷ run = (15 − 6) ÷ (−9 − (−6))
- = 9 ÷ −3 = −3
Answer: slope −5; y-intercept 2
In y = (slope)x + (y-intercept), the number multiplying x is the slope and the constant is where the line crosses the y-axis.
Answer: −1
- slope = rise ÷ run = (4 − (−1)) ÷ (−6 − (−1))
- = 5 ÷ −5 = −1
Answer: 3
- slope = rise ÷ run = (14 − 2) ÷ (5 − 1)
- = 12 ÷ 4 = 3
Marking tips
- Give credit for correct method even when the final answer slips — the working shows where the thinking went right.
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