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3

Set 4: Function Notation (Beginner)

Explanation

Answer: B

PROBLEM

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

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

A.

8

B.

11

✓ Correct
C.

12

D.

14

Detailed Explanation

Choice B is the best answer. f(1) = 4(1) + 7 = 4 + 7 = 11

Why others are wrong:
A: 8 is incorrect because it does not satisfy the equation.
C: 12 is incorrect because it does not satisfy the equation.
D: 14 is incorrect because it does not satisfy the equation.
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