This grade 8 slope proportional quiz asks 10 multiple-choice questions on proportional relationships and slope, and each answer comes with a short explanation.
Answer these ten multiple-choice questions on proportional relationships and slope. Several questions use a graph. Choose the single best answer for each, then read the explanation to learn from any mistakes.
What is the slope of the line shown?
Which equation represents a proportional relationship?
Both triangles lie under the same line through the origin. What is the missing rise?
Car A follows \(y=45x\). Car B travels 100 miles in 2 hours and 200 miles in 4 hours. Which statement is true?
Which equation describes the line shown?
What is the slope of the line through \((1,2)\) and \((5,14)\)?
Which point lies on the graph of \(y=\frac{3}{4}x\)?
The graph shows the money Jamal earns. Which statement is true?
What is the \(y\)-intercept of the line \(y=-2x+9\)?
Which statement about the two lines is true?
🎉 Quiz complete!
How does this quiz work?
Read each question, choose one answer among A, B, C and D, then check it: a short explanation appears after every answer. Your score out of 10 is shown at the end, and you can restart the quiz as often as you like.
What should you review before the quiz?
Reread the key facts of the lesson and the worked example. If a question is hard, go back to the matching part of the lesson, then try the quiz again. Write your work on scrap paper: most mistakes come from skipping a step, not from the idea itself.
Remember:
- Standards 8.EE.B.5 and 8.EE.B.6: graph proportional relationships, compare unit rates, and explain slope with similar triangles.
- A proportional relationship is \(y=mx\); the slope \(m\) is the unit rate.
- Slope is rise over run, \(\frac{y_2-y_1}{x_2-x_1}\), and is the same between any two points on a line.
- The equation \(y=mx+b\) has slope \(m\) and \(y\)-intercept \(b\).
- To compare two relationships, compare their unit rates.
How to use this grade 8 slope proportional quiz
Retake this grade 8 slope proportional quiz until every answer is right, then move on to the worksheet and the test.
See every chapter on the Grade 8 math page.