Okay, here we have this:
Considering the provided graph, we are going to perform the requested operation, so we obtain the following:
So to find the values at which the functions are evaluated we will look at the graph to see what value y takes when it is at the given value of x, then we have:
f(2)+g(-1)
=-1+2
=1
Finally we obtain that the requested operation is equal to 1.