Printable worksheets
Quadratic functions
Parabolas, roots and the vertex.
Loxivia · Oct 16, 2026 · 8 questions
Warm-up
- The parabola — Every quadratic draws a parabola.
- Quadratic functions — practice 1 — Answer the quick questions.
- Quadratic functions — practice 2 — Answer the quick questions.
- Quadratic functions — practice 3 — Answer the quick questions.
- Quadratic functions — practice 4 — Answer the quick questions.
Practice
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1. f(x) = x² + 2x. What is f(4)? (Quadratic functions)
a) 16 b) 28 c) 8 d) 24 -
2. What is 10 × 12? (Quadratic functions)
= ______________________
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3. f(x) = x² + 2x. What is f(2)? (Quadratic functions)
a) 10 b) 4 c) 8 -
4. What is 9 × 14? (Quadratic functions)
= ______________________
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5. f(x) = x² + 2x. What is f(4)? (Quadratic functions)
a) 28 b) 8 c) 16 d) 24 -
6. -5 is smaller than -2. (Quadratic functions)
a) True b) False -
7. What is 7 × 5? (Quadratic functions)
= ______________________
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8. f(x) = x² + 2x. What is f(2)? (Quadratic functions)
a) 10 b) 8 c) 4