Question

I know how to find answers I get them mixed up every time

Answer 1

We are to evaluate for

$\begin{gathered} f(2)=? \\ f(x)=-1,x=? \end{gathered}$

Let us upload the image and evaluate for f(2)

From the image, we can observe that

$f(2)=1$

Let us upload the second image and evaluate for x, when f(x)=-1

From the image above, the value of x for which f(x)=-1 is

$x=0$

Final answers

$\begin{gathered} a)\text{ 1} \\ b)\text{ 0} \end{gathered}$