Question

I need help with this.

Answer 1

0.5-2(0)^2
0.5-0
0.5
ez
desmos to graph

Answer 2

Naw, yo don't need to graph
but anyway, what you do is input values for x and get values for y
0.5-2x^2

goes from -10 to 10
the only visible ones are from x=-2 to x=2
f(-2)=-7.5
f(-1)=-1.5
f(0)=0.5
f(1)=-1.5
f(2)=-7.5
graph below

and f(0)=0.5