Question

Given the following function, find f(-4), f(0), and f(3).

f(x)=x2-4

f(-4)=
f(0)=
f(3)=

Answer 1

f(-4)= (-4)2-4
the answer is -12

f(0)=(0)2-4
the answer is -4

f(3)=(3)2-4
the answer is 2

Answer 2

You plug in the given value for x.

F(-4)=(-4)2-4
F(-4)=-8-4
F(-4)=-12

F(0)=(0)2-4
F(0)=0-4
F(0)=-4

F(3)=(3)2-4
F(3)=6-4
F(3)=2