Here is a good site for graphing lines.

http://www.webmath.com/gline.html

You can use this site to graph several lines at the same time.

https://www.symbolab.com/solver/line-equation-calculator

Here is a good site for graphing lines.

http://www.webmath.com/gline.html

You can use this site to graph several lines at the same time.

https://www.symbolab.com/solver/line-equation-calculator