Question

How do you graph `y= -x^2+4`?

Answer 1

Start by finding some values for `f(x)`

`f(-3)=-(-3)²+4=-9+4=-5`
`f(-2)=-(-2)²+4=-4+4=0`
`f(-1)=-(-1)²+4=-1+4=3`
`f(0)=-0²+4=0+4=4`
`f(1)=-1²+4=-1+4=3`
`f(2)=-2²+4=-4+4=0`
`f(3)=-3²+4=-9+4=-5`
graph{-(x^2)+4 [-5, 5, -5, 6]}