10
Answer: ASet 1: Function Notation (Beginner)
Explanation
PROBLEM
If f(x) = 5x + 7, find f(8).
If f(x) = 5x + 7, find f(8).
A.✓ Correct
47
B.
44
C.
48
D.
49
Detailed Explanation
Choice A is the best answer. f(8) = 5(8) + 7 = 40 + 7 = 47
Why others are wrong:
B: 44 is incorrect because it does not satisfy the equation.
C: 48 is incorrect because it does not satisfy the equation.
D: 49 is incorrect because it does not satisfy the equation.
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