9
Answer: DSet 2: Polynomial Functions (Advanced)
Explanation
PROBLEM
If f(x) = 2x squared + 1x + 1, find f(5).
If f(x) = 2x squared + 1x + 1, find f(5).
A.
112
B.
57
C.
55
D.✓ Correct
56
Detailed Explanation
Choice D is the best answer. f(5) = 2(5) squared + 1(5) + 1 = 56
Why others are wrong:
A: 112 is incorrect because it does not satisfy the equation.
B: 57 is incorrect because it does not satisfy the equation.
C: 55 is incorrect because it does not satisfy the equation.