10

Set 5: Linear Functions (Intermediate)

Explanation

Answer: C

PROBLEM

If g(x) = 5x - 5, for what x is g(x) = 20?

If g(x) = 5x - 5, for what x is g(x) = 20?

A.

3

B.

25

C.

5

✓ Correct
D.

4

Detailed Explanation

Choice C is the best answer. 5x - 5 = 20. 5x = 25, x = 5

Why others are wrong:
A: 3 is incorrect because it does not satisfy the equation.
B: 25 is incorrect because it does not satisfy the equation.
D: 4 is incorrect because it does not satisfy the equation.

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