Question

evaluate the function using the following graph

Answer 1

$\begin{gathered} So,\text{ } \\ f(\text{ -1)=?} \\ Here,\Rightarrow x=-1\text{, so f(-1) from the graph is } \\ f(-1)=1 \end{gathered}$

You see the value of function is 0,

Now you check on which point Y is 0.

It is 0 on x=1