Unit 1 AP Precalculus Practice Test 2026

For the function f(x) = x 2 − 4x + 1, evaluate f(x + h).

-6 c(t) = \frac{349.99 + 121.67t} {t} . x 2 + h 2 + 2xh − 4x − 4h + 1 y= \frac{x} {x^{2} - 4}

x 2 + h 2 + 2xh − 4x − 4h + 1

Correct answer: x 2 + h 2 + 2xh − 4x − 4h + 1

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