5

Set 4: Polynomial Functions (Intermediate)

Explanation

Answer: D

PROBLEM

If f(x) = 3x squared - 1x - 3, find f(2).

If f(x) = 3x squared - 1x - 3, find f(2).

A.

6

B.

5

C.

8

D.

7

✓ Correct

Detailed Explanation

Choice D is the best answer. f(2) = 3(2) squared - 1(2) - 3 = 7

Why others are wrong:
A: 6 is incorrect because it does not satisfy the equation.
B: 5 is incorrect because it does not satisfy the equation.
C: 8 is incorrect because it does not satisfy the equation.