Set 4: Function Notation (Beginner)

[Variation 1] **Choice C is the best answer.** f(4) = 1(4) + 7 = 4 + 7 = 11

Explanation

Answer: C

PROBLEM

Recent studies show that if f(x) = 1x + 7, find f(4).

If f(x) = 1x + 7, find f(4).

✓ Correct

Detailed Explanation

[Variation 1] Choice C is the best answer. f(4) = 1(4) + 7 = 4 + 7 = 11

Why others are wrong:

A: 10 is incorrect because it does not satisfy the equation.

B: 14 is incorrect because it does not satisfy the equation.

D: 8 is incorrect because it does not satisfy the equation.