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7

Set 3: Linear Functions (Advanced)

Explanation

Answer: B

PROBLEM

If f(x) = mx + 4, and f(2) = 10, what is f(5)?

If f(x) = mx + 4, and f(2) = 10, what is f(5)?

A.

25

B.

19

✓ Correct
C.

14

D.

16

Detailed Explanation

Choice B is the best answer. 2m + 4 = 10, m = 3. f(5) = 19

Why others are wrong:
A: 25 is incorrect because it does not satisfy the equation.
C: 14 is incorrect because it does not satisfy the equation.
D: 16 is incorrect because it does not satisfy the equation.
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