I will introduce a program that is Graphing Calculator. Firstly, you choose equations that are wanted to draw and write this place.
Secondly, you push the GRAPH button and see the graphs of equations.
If you change the interval of x-axis or y-axis and coordinate system you pass the SETTINGS button.
You can find intersection point or plot points when you push INTERSECTION button and PLOT POINTS button.
If you want to try to draw a graph you should visit website
click on :)