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9

Set 1: Function Notation (Beginner)

Explanation

Answer: B

PROBLEM

If f(x) = 4x - 5, find f(6).

If f(x) = 4x - 5, find f(6).

A.

17

B.

19

✓ Correct
C.

22

D.

20

Detailed Explanation

Choice B is the best answer. f(6) = 4(6) - 5 = 24 - 5 = 19

Why others are wrong:
A: 17 is incorrect because it does not satisfy the equation.
C: 22 is incorrect because it does not satisfy the equation.
D: 20 is incorrect because it does not satisfy the equation.
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