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Evaluate quadratic functions

Year 10 maths · Fieldbook Learning

Name ______________________ Date __________

Square the number first, then multiply.

f(x) = −x² + 7x + 7. Find f(3).
f(x) = −5x² − 9x − 1. Find f(−4).
f(x) = 3x² − 3x. Find f(−4).
f(x) = 2x² + 6x. Find f(−5).
f(x) = x² − x + 3. Find f(−5).
f(x) = 2x² − 6x + 6. Find f(1).
f(x) = 5x² + 9x − 3. Find f(0).
f(x) = −2x² − x − 12. Find f(5).
f(x) = 5x² − 8x − 12. Find f(2).
f(x) = −4x² − 4x + 11. Find f(−5).
f(x) = 5x² − 5x + 8. Find f(−2).
f(x) = −2x² + 3x + 7. Find f(3).
f(x) = −3x² − x + 9. Find f(−5).
f(x) = x² + 2x + 2. Find f(−4).
f(x) = 2x² − 2x − 2. Find f(5).
f(x) = −4x² + 6x + 5. Find f(−2).
f(x) = −3x² + x + 12. Find f(−4).
f(x) = −2x² − 9x + 4. Find f(5).
f(x) = −5x² + 2x − 3. Find f(5).
f(x) = 2x² − 7x − 2. Find f(−1).

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Answer key: Evaluate quadratic functions

19
-45
60
20
33
2
-3
-67
-8
-69
38
-2
-61
10
38
-23
-40
-91
-118
7