Question

f(x)=x^-2+8x+4


Help I only jave 5 minutes to get theanswer

Answer 1

what's the question? and are you sure its x^(-2) and not x^2?

Answer 2

My bad its f(x)=-x^2+8x+4

Answer 3

whats the question?

Answer 4

i presume it's find the roots?

Answer 5

The maximum y valvue y=..so what does Y equal

Answer 6

which math is this? calculus or pre-cal?

Answer 7

y= 20????..ALgerbra

Answer 8

you're right. y = 20

Answer 9

one way is to rearrage by completing the square to:

f(x) = -(x-4)^2 + 20