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4

Set 2: Linear Functions (Beginner)

Explanation

Answer: B

PROBLEM

If f(x) = 5x - 10, find f(4).

If f(x) = 5x - 10, find f(4).

A.

6

B.

10

✓ Correct
C.

15

D.

20

Detailed Explanation

Choice B is the best answer. f(4) = 5(4) - 10 = 10

Why others are wrong:
A: 6 is incorrect because it does not satisfy the equation.
C: 15 is incorrect because it does not satisfy the equation.
D: 20 is incorrect because it does not satisfy the equation.
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