Evaluating functions practice questions

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Practice Page

Directions: Read carefully. Choose the best answers.

1.

buildfunction

2. Which expression represents f (3a) when f (x) = | 2x 2 - 3x | ? 3.

pilew

Given f (x) = x 2 and h(x) = 4x, which expression represents g(x) when g(x) is defined as:

buildfunction2

4.

sr

Given , find m(2a + 1).

5. Given f (x) = 3x 2 - 2x, express f (x + h).

buildfunction3

6.

Given h(x) = x 3 and k(x) = x + 3, find . Assume k(a) ≠ 0.

7. If m(x) = | 4 - x | and p(x) = x + 2, express
t(3a + 2) when t(x) = 4m(x) - 2p(x). 8.

pf

Given: Find: f (-5) and f (2.5) .

9.

fxx

Given:

fxx2

Express .

10. Given f (x) = 2 -x , express f (-(x + 1)) • f (-3x).

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