The graph of y=f(x) is shown in red below. Find f(-2).
image: latex.artofproblemsolving.com/a/8/a/a8ae629727f3fdecb6510424425ef2e59c1d64c2.png (Assume grid lines are spaced unit apart and that the graph is made from line segments.)
f(-2) = 4/7.
