Take any equation and graph both sides
of the equation.
For example, if you are trying to solve the equation 3x - 4
= 11, graph y1 = 3x - 4 and graph y2 = 11. How can you
identify the solution to the equation on the graph?
Using graphing calculator, we can look at
the graphic representation of the given equations.
If we look closely, we can see that all of
the graphs intersect at the point (5,11). Since we are given in
the problem that y=11, then we can solve to find that x=5, which
is supported by the graph above.