What does the graph of the system of equations tell you about its solutions?

The correct answer is: We are asked to explain what the graph of the set of equation tells about the solutions.

Hint:
A graph is a geometrical representation of an expression. It can be used to solve an equation as well.
We are asked to explain what the graph of the set of equation tells about the solutions.
Step 1 of 3:
Find three set of coordinate points corresponding to .
When x=0,

When x=-1,

When x=1,

Step 2 of 3:
Find two solutions for .
When x=1,

When x=0,

Step 3 of 3:
Plot the set of coordinate points to get the graph:

The graphs intersect at a single point (2, 6). This is the solution of the given set of equation.
 

The points of intersection of two sets of graphs are the corresponding solutions of the set of equations.