Solving systems of equations by graphing
Solving systems of equations by graphing is one method to find the point that is a solution to both original equations.
With this method you first sketch the lines representing the two equations. Then you try to determine whether the two lines intesect at a point. That is:
1. Graph both equations, obtaining two straight lines.
2. The simultaneous solution is given by the coordinates (x,y) of the point of intersection of these lines.
Solve by graphing:
1. Write each equation in slope-intercept form:
2. Graph both equations:
The graphs intersect at the point (2,3), so (2,3) is the solution of the system.