Last updated: October 22, 2026 · Written by the Math Made Easy math teachers
Looking for a slope and proportional relationships quiz? Then this Grade 8 quiz on Slope and Proportional Relationships on Graphs asks 10 multiple-choice questions with instant feedback. Ten quick questions on proportional relationships and slope. Choose one answer for each question. The explanations show the usual slip, such as mixing up rise and run.
Standards: 8.EE.B.5, 8.EE.B.6 · Level: Grade 8
What this Slope and Proportional Relationships on Graphs quiz checks
- Proportional: y = kx; the graph passes through (0, 0).
- Slope m = rise ÷ run = (y₂ − y₁) ÷ (x₂ − x₁).
- In y = kx the slope is the unit rate k.
- Similar slope triangles show the slope is constant on a line.
- y = mx + b has slope m and y-intercept b; it is proportional only when b = 0.
The 10 questions of the quiz
- Which equation is proportional?
- What is the slope through (2, 3) and (6, 15)?
- A table has x = 2, 5, 8 and y = 9, 22.5, 36. What is k?
- The line y = −6x + 11 has which slope, in the equation y = mx + b form?
- Which of y = 3x, y = 3.5x and y = 2.9x is steepest?
- What is the slope of a horizontal line?
- Why can slope be found from any two points on a line?
- Where does y = 8x − 5 cross the y-axis (give the y value)?
- What is the slope of the line shown?
- What is the slope of the line shown?
After the quiz
Missed a question? Reread the Slope and Proportional Relationships on Graphs lesson, then take the quiz again. Next, solve the Grade 8 worksheet on Slope and Proportional Relationships on Graphs, one star first, then two and three stars. Finally, take the chapter test under real conditions, without notes and with a timer.
Slope And Proportional Relationships lessonSlope And Proportional Relationships worksheetSlope And Proportional Relationships test
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