Question

If f(x)=-3x² +1, then which of the following is the value of f(-2)?

a) -11
b) 37
c) -35
d) -37

Answer 1

Explanation:

f(x)=3x²+1

f(-2)=3(-2)²+1

= -12+1

=-13 ans

Answer 2

A, -11

Explanation:

f(x)=-3x(-2)+1

=-3(4)+1

=-12+1

=-11