Question

F(x)=-x2+1 what’s f(2) ?

Answer 1

f(2)= 5

Explanation:

Given f(x) = -x² + 1

f(2) = -2² + 1 = 4 + 1 = 5

f(2) means the value of x = 2

Hence we substitute the value of X into f(x) = -x² + 1