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.
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).
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.
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.
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 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.
Answer: 1
- slope = rise ÷ run = (6 − 2) ÷ (6 − 2)
- = 4 ÷ 4 = 1
Answer: −2
- slope = rise ÷ run = (1 − 5) ÷ (4 − 2)
- = −4 ÷ 2 = −2
Answer: −2
- slope = rise ÷ run = (3 − (−3)) ÷ (−6 − (−3))
- = 6 ÷ −3 = −2
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: 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.
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.
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.