📅2026 FAFSA Deadline: June 30, 2026→
3

Set 1: Function Notation (Intermediate)

Explanation

Answer: A

PROBLEM

If f(x) = 4x + 2, find x when f(x) = 42.

If f(x) = 4x + 2, find x when f(x) = 42.

A.

10

✓ Correct
B.

13

C.

12

D.

8

Detailed Explanation

Choice A is the best answer. 4x + 2 = 42. 4x = 40. x = 10

Why others are wrong:
B: 13 is incorrect because it does not satisfy the equation.
C: 12 is incorrect because it does not satisfy the equation.
D: 8 is incorrect because it does not satisfy the equation.
← PreviousNext →