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6

Set 2: Function Notation (Beginner)

Explanation

Answer: D

PROBLEM

If f(x) = 4x - 5, find f(2).

If f(x) = 4x - 5, find f(2).

A.

2

B.

4

C.

5

D.

3

✓ Correct

Detailed Explanation

Choice D is the best answer. f(2) = 4(2) - 5 = 8 - 5 = 3

Why others are wrong:
A: 2 is incorrect because it does not satisfy the equation.
B: 4 is incorrect because it does not satisfy the equation.
C: 5 is incorrect because it does not satisfy the equation.
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