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5

Set 3: Linear Functions (Beginner)

Explanation

Answer: B

PROBLEM

If f(x) = 2x - 6, find f(7).

If f(x) = 2x - 6, find f(7).

A.

12

B.

8

✓ Correct
C.

20

D.

1

Detailed Explanation

Choice B is the best answer. f(7) = 2(7) - 6 = 8

Why others are wrong:
A: 12 is incorrect because it does not satisfy the equation.
C: 20 is incorrect because it does not satisfy the equation.
D: 1 is incorrect because it does not satisfy the equation.
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