8th Grade Slope and Linear Equations Worksheet — Level 1 — Practice Set 3 — 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 3 — Answers
Show your work. Slope = rise ÷ run; the equation of a line can be written as y = (slope)x + (y-intercept).
Answer: slope 6; y-intercept −6
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 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.
Answer: slope 3; 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.
Answer: 1
- slope = rise ÷ run = (9 − 6) ÷ (9 − 6)
- = 3 ÷ 3 = 1
Answer: slope −3; y-intercept −8
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 −5; y-intercept −4
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 = (−1 − 0) ÷ (4 − 5)
- = −1 ÷ −1 = 1
Answer: slope −5; 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.
Answer: slope 4; 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: −2
- slope = rise ÷ run = (12 − 4) ÷ (2 − 6)
- = 8 ÷ −4 = −2
Marking tips
- Give credit for correct method even when the final answer slips — the working shows where the thinking went right.
- For open-ended tasks, use the success criteria as a checklist rather than looking for one "right" answer.
- Celebrate what went well first, then pick one thing to work on next.
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