Question

Evaluate the function Given f(x) = x2 + x, find f(-10)

Evaluate the function.
A) 110
B) -90
C) -110
D) 90

What is the right answer?

Answer 1

D) 90

Explanation:

f(x) = x2 + x substituting with x = -10 we have

f(-10) = (-10)2 + (-10) = 100 - 10 (-10 squared is positive 100)

f (-10) = 90

correct answer is D)