How do you solve the system #y = 3x - 4# and #2x - y = 1# by graphing?
Step one. Solve both equations for
Then solve the second equation for
Now, either plotting points or plugging into your graphing utility, you can first graph the first equation:
Then, on the same graph paper, either plot points or plugging into your graphing utility, you draw the second graph on top of this one.
Observing closely where they cross, gives the solution