Common Core 8.F

Grade 8 Functions Test Generator

Create Grade 8 functions tests with printable PDF format and answer keys.

Designed for function notation, table analysis, slope context, and linear model comparison.

Create Grade 8 functions test →

Sample questions

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

2. Point-slope question: slope through (1,2) and (4,11)

3. Write linear rule for table increasing by 4 from y=2 at x=0

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

5. If f(x)=3x-1 and f(x)=20, solve x

Answer key preview

1. 13

2(5)+3 = 13.

2. 3

(11-2)/(4-1) = 9/3 = 3.

3. y = 4x + 2

Slope 4 and intercept 2.

Skills assessed

Function notation
Linear rule writing
Slope meaning
Table/graph interpretation

Common student mistakes

Confusing input and output
Incorrect slope calculation
Mixing intercept with slope

FAQ

What functions skills are assessed?

Function notation, input-output rules, slope interpretation, and linear function comparison.

Does it include answer key previews?

Yes. Generated tests include full step-by-step keys.

Keep going with MathQuizily

Need a classroom-ready version? Use our math test generator to create a printable PDF with answer key.
Want a printable version? Try our printable math test generator.
Need worked solutions? Use our math test generator with answer key.

Build the assessment, not just the questions

MathQuizily helps teachers move from a topic or standard to a printable math test with answer keys, balanced difficulty, and classroom-ready PDF output.

A useful assessment should make the learning target clear, cover the intended skills, and give the teacher enough information to review the result before students see it. The workflow supports short quizzes, chapter checks, diagnostic tests, homework packets, make-up assessments, and equivalent retake versions.

Choose a grade, topic, curriculum context, and difficulty level. The generated PDF includes a student version and a separate worked answer key, so teachers can print, review, and grade without reformatting questions or building solutions from scratch. No student account is required to create or print a test.