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(a) If f(x) = 3x 3 − 7x + 5, then f(−1) = A. 1 B. −1 C. 9 D. 8
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3 votes
(a) If f(x) = 3x
3 − 7x + 5, then f(−1) =
A. 1 B. −1 C. 9 D. 8

User Orlo
by
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1 Answer

3 votes
f(x) = 3x³ - 7x + 5

f(-1) = 3(-1)³ - 7(-1) + 5
f(-1) = -3 +7 + 5
f(-1) = 9 (Answer C)
User Marienke
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