Last updated: October 22, 2026 · Written by the Math Made Easy math teachers
Looking for a linear equations quiz grade 8? Then this Grade 8 quiz on Modeling Real Situations With Linear Functions asks 10 multiple-choice questions with instant feedback. Ten quick questions on linear functions and modeling. Choose one answer for each. The explanations name the typical slip, such as dropping the minus sign on a negative rate.
Standards: 8.F.B.4, 8.F.B.5 · Level: Grade 8
What this Modeling Real Situations With Linear Functions quiz checks
- Rate of change m = (y₂ − y₁) ÷ (x₂ − x₁).
- Initial value b is the output when x = 0.
- Find b by substituting a known point into y = mx + b.
- Increasing means the graph rises; decreasing means it falls; constant means level.
- A linear graph is a straight line; a nonlinear graph bends.
The 10 questions of the quiz
- Which rate of change belongs to the function y = −4x + 9?
- What is the initial value of y = 5.5x + 12?
- Find the slope of the line through (3, −2) and (6, 13).
- A table has x = 0, 1, 2 and y = 7, 12, 17. Which rule fits?
- A graph that falls from left to right shows a function that is…
- Which table is nonlinear?
- In C = 0.35m + 20, what does 20 represent?
- A line passes through (0, −3) and (2, 3). Which equation is it?
- Which equation matches the graph?
- Which story matches the graph?
After the quiz
Missed a question? Reread the Modeling Real Situations With Linear Functions lesson, then take the quiz again. Next, solve the Grade 8 worksheet on Modeling Real Situations With Linear Functions, one star first, then two and three stars. Finally, take the chapter test under real conditions, without notes and with a timer.