Common Core Grade 8 · 8.F

Common Core 8.F Test Generator

Create printable tests for this Common Core domain with answer keys.

Use 8.F tests to measure function fluency before Algebra 1 transition.

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Sample questions

1. If f(x)=2x+5, find f(3)

2. Find slope between (1,2) and (3,6)

3. Write rule with slope 4 and intercept -1

4. If g(x)=3x-1 and g(x)=20, solve x

5. Is {(1,2),(2,2),(3,4)} a function?

Answer key preview

1. 11

2(3) + 5 = 11.

2. 2

(6-2)/(3-1) = 2.

3. y = 4x - 1

Use y = mx + b.

Skills assessed

Function notation
Slope and rate of change
Rule writing
Table and coordinate interpretation

Common student mistakes

Confusing slope with intercept
Input-output reversal
Arithmetic errors in substitution

FAQ

What is covered in 8.F?

Function notation, linear relationships, and comparing functions.

Can I print these tests immediately?

Yes. Output is printable PDF with full answer key.

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