Question

Question #10What is f(-1) for the function given?f(3) = 22 – 32 +8A 5B 6C 11D12.

Answer 1

the given function is

`\begin{gathered} f(x)=x^2-3x+8 \\ so\text{ on substituting x=-1 we get:-} \\ f(-1)=(-1)^2-3(-1)+8 \\ =1+3+8 \\ =12 \end{gathered}`

So the correct option is (D) 12