Question

Given f(x) = -x^2+x, find f(-1)

Answer 1

-2

Explanation:

Since they said f(-1) we know that x = -1

So we plug in -1 for anything that says x

-1^2 - 1

Now we do 1^2 = 1 then mulitpy by -1

that give us -1

-1^2 = -1

-1 - 1 = -2

Answer 2

f(-1)=0

Explanation:

`f(x) = -x^2+x\\\\Now,\\\\f(-1)=-(1)^(2) +(-1)\\\\f(-1)=1-1\\\\f(-1)=0`