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4

Set 3: Function Notation (Intermediate)

Explanation

Answer: A

PROBLEM

If f(x) = 6x - 3, find f(7).

If f(x) = 6x - 3, find f(7).

A.

39

✓ Correct
B.

40

C.

36

D.

42

Detailed Explanation

Choice A is the best answer. f(7) = 6(7) - 3 = 42 - 3 = 39

Why others are wrong:
B: 40 is incorrect because it does not satisfy the equation.
C: 36 is incorrect because it does not satisfy the equation.
D: 42 is incorrect because it does not satisfy the equation.
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