How do you solve the system of equations by graphing #5x-8y=2# and #2x+8=y#?
Draw the graphs of two lines (as explained below), whose point of intersection gives the solution, which is
To solve the system of equations by graphing
To graph a linear equation, one can convert it into slope and y-intercept form (described by the writer elsewhere). Locate the y-intercept on the graph and plot the point. From this point, use the slope to find a second point and plot it. Draw the line that connects the two points. Here second equation
Similarly draw the second line, which in slope-intercept form is
Coordinates of the point of intersection of the two lines will give solution of the equation, which is