9th Grade Slope and Linear Equations Worksheet — Level 3 — Answers
Answer sheet with worked solutions for the 9th Grade linear relationships & graphs worksheet.
Success TutoringWorksheetsAnswer sheet9th Grade · Mathematics · Linear Relationships & Graphs9th Grade Slope and Linear Equations Worksheet — Level 3 — 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 = −3: y = 3 × (−3) − 6 = −15, which matches.
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 5; 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: y = −3x − 6
- y = −3x + (y-intercept)
- −12 = −3 × 2 + (y-intercept)
- y-intercept = −12 − (−6) = −6
- y = −3x − 6
- AYes
- BNo
Answer: Yes
Substitute x = 0: y = −4 × 0 − 4 = −4, which matches.
- AYes
- BNo
Answer: No
Substitute x = 0: y = 1 × 0 + 9 = 9, not 11.
Answer: slope −1; 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.
- AYes
- BNo
Answer: No
Substitute x = 3: y = 3 × 3 + 1 = 10, not 7.
Answer: y = −2x − 1
- y = −2x + (y-intercept)
- 1 = −2 × (−1) + (y-intercept)
- y-intercept = 1 − 2 = −1
- y = −2x − 1
- AYes
- BNo
Answer: Yes
Substitute x = 2: y = −5 × 2 − 5 = −15, which matches.
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