10
Answer: ASet 2: Polynomial Functions (Intermediate)
Explanation
PROBLEM
If f(x) = 2x squared - 1x - 1, find f(4).
If f(x) = 2x squared - 1x - 1, find f(4).
A.✓ Correct
27
B.
26
C.
29
D.
28
Detailed Explanation
Choice A is the best answer. f(4) = 2(4) squared - 1(4) - 1 = 27
Why others are wrong:
B: 26 is incorrect because it does not satisfy the equation.
C: 29 is incorrect because it does not satisfy the equation.
D: 28 is incorrect because it does not satisfy the equation.
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