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1

Set 5: Polynomial Functions (Intermediate)

Explanation

Answer: B

PROBLEM

If f(x) = 3x squared - 1x - 5, find f(1).

If f(x) = 3x squared - 1x - 5, find f(1).

A.

28

B.

-3

✓ Correct
C.

7

D.

4

Detailed Explanation

Choice B is the best answer. f(1) = 3(1) squared - 1(1) - 5 = -3

Why others are wrong:
A: 28 is incorrect because it does not satisfy the equation.
C: 7 is incorrect because it does not satisfy the equation.
D: 4 is incorrect because it does not satisfy the equation.
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