Question

Could really use some help y'all-

For the function below, find f(2):


f(x)=2x^4-8x^2+5x-7


A. f(2)= 3


B. f(2)= -2


C. f(2)= -13


D. f(2)= 0

Answer 1

Ok you just replace the x for a 2.

2(2)^4 - 8(2)^2 + 5(2) - 7

2(16) - 8(4) + 5(2) - 7

32 - 32 + 10 - 7

10 - 7

3

It's A. f(2) = 3.