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5

Set 3: Function Notation (Advanced)

Explanation

Answer: C

PROBLEM

If f(x) = 3x - 5, find x when f(x) = 1.

If f(x) = 3x - 5, find x when f(x) = 1.

A.

4

B.

3

C.

2

✓ Correct
D.

5

Detailed Explanation

Choice C is the best answer. 3x - 5 = 1. 3x = 6. x = 2

Why others are wrong:
A: 4 is incorrect because it does not satisfy the equation.
B: 3 is incorrect because it does not satisfy the equation.
D: 5 is incorrect because it does not satisfy the equation.
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