Explanation
We are given the following graph:
We are required to determine f(1), f(3), and f(-1) using the given graph.
This is achieved thus:
We determine the point of intersection of the x-coordinate to the given graph to arrive at the solution as follows:
Using the intersection made in the graph above, we have:
[tex]\begin{gathered} f(1)=-1 \\ f(3)=1 \\ f(-1)=-3 \end{gathered}[/tex]
Hence, the answer is:
[tex]-1,1,-3[/tex]
The third option is correct.
