Answer:
(x, y) = (13.6, 7.4)
Step-by-step explanation:
You want a graphical solution to the system of equations ...
Graph
A graph of the system is attached. The point of intersection of the two lines is (x, y) = (13.6, 7.4).
The solution is (x, y) = (13.6, 7.4).
__
Additional comment
Many utilities are available for graphing the equations. If you want to graph them by hand, it is helpful to find a couple of points on each line. Knowing one point and the slope is sufficient to help you find another point or two.
The first equation can be written as y = 1/4x +4, telling you the y-intercept is 4 and the slope is 1/4.
The second equation will be satisfied by the point (1, -1), and the graph will have a slope of 2/3.
