Answer:
If you give some thought to the given facts, you will realize that f(5) = -1 means point (5,-1).
Similarly, there's a second point given.
Having two points enables you to find slope.
Then you can use the Point Slope form of the equation to write a formula for the line, involving x and y by using either of the ordered pairs as (x1, y1).
Solve for y, in terms of x, and then relabel that f(x)...because in graphs, y = f(x
Step-by-step explanation: