Question

F(x) = –x2+ 10x – 2Find f(-5)

Answer 1

Given a function,

`f(x)=-x^2+10x-2`

Then, f( - 5) is,

`\begin{gathered} f(-5)=-(-5)^2+10(-5)-2 \\ =-25-50-2 \\ =-77 \end{gathered}`

Therefore, f( -5) = -77.