How do you solve the equation x^2-3x=0 by graphing?

1 Answer
Dec 14, 2017

x = 0 or x = 3

Explanation:

If we wanted to graph the equation you posted we would replace the 0 with y:

y = x^2 - 3x.

If we graphed the above equation, it would look something like this:

Click Here

Now, previously we have repalced y with 0. That means that when y = 0 on the graph, x is equal to the solution of the equation.

Therefore, if you find the x-coordinate of the x-intercept, that is the solution to the equation.

Thus, x = 0 or x = 3.