10th Grade Slope and Linear Equations Worksheet — Level 3 — Practice Set 2 — Answers
Answer sheet with worked solutions for the 10th Grade linear relationships & graphs worksheet.
10th Grade Slope and Linear Equations Worksheet — Level 3 — Practice Set 2 — Answers
Show your work. Slope = rise ÷ run; the equation of a line can be written as y = (slope)x + (y-intercept).
- AYes
- BNo
Answer: Yes
Substitute x = −2: y = −4 × (−2) − 1 = 7, which matches.
- AYes
- BNo
Answer: Yes
Substitute x = 1: y = −4 × 1 − 8 = −12, which matches.
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: slope 1; 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: y = −5x + 3
- y = −5x + (y-intercept)
- 3 = −5 × 0 + (y-intercept)
- y-intercept = 3 − 0 = 3
- y = −5x + 3
Answer: slope 4; 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: slope −2; 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: y = −3x + 9
- y = −3x + (y-intercept)
- −3 = −3 × 4 + (y-intercept)
- y-intercept = −3 − (−12) = 9
- y = −3x + 9
- AYes
- BNo
Answer: Yes
Substitute x = −2: y = 2 × (−2) + 8 = 4, which matches.
- AYes
- BNo
Answer: No
Substitute x = −3: y = −1 × (−3) + 4 = 7, not 9.
Marking tips
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