Question the-fu

2.1 Nonlinear Functions - Function composition and evaluation
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The function f is defined by fx=10x2-32x-152. What is the value of f0?

A.

-152

B.

-32

C.

0

D.

10

The function f is defined by f x = 10 x 2 - 32 x -

Medium-difficulty · SAT Math · Nonlinear Functions — Function composition and evaluation. Read the question above, select your answer, and check the full explanation below to understand exactly why the correct choice works.

Answer explanation

Choice A is correct. The value of f0 is the value of fx when x = 0 . The function f is defined by fx=10x2-32x-152. Substituting 0 for x in this equation yields f0=1002-320-152. This equation can be rewritten as f0=100-0-152, or f0=-152. Therefore, the value of f0 is - 152 .

Choice B is incorrect and may result from conceptual or calculation errors.

Choice C is incorrect and may result from conceptual or calculation errors.

Choice D is incorrect and may result from conceptual or calculation errors.