Question

How do you find `h(4)` given `h(n)=-2n^2+4`?

Answer 1

`h(4)=color(green)(-28)`

Explanation:

If `h(color(red)(n))=-2color(red)(n)^2+4`

then `h(color(red)(4))= -2(color(red)(4))^2+4`

`color(white)("XXXXX")=-2 xx 16 +4`

`color(white)("XXXXX")= -32+4`

`color(white)("XXXXX")=-28`