Another way to identify the domain and range of functions is by using graphs. Because the domain refers to the set of possible input values, the domain of a graph consists of all the input values shown on the x-axis. The range is the set of possible output values, which are shown on the y-axis.
A solution to a system of linear equations is the point at which they intersect. These graphs do not intersect as they are parallel. There is no solution.
