Thank you for the opportunity to help you with your question!

Sorry can't draw on this study pool answer field....The explanation I can offer. First you need to know all those will be straight lines the the equations are of former y=mx+c

You can calculate the cordinates of the equations by;

Y2-Y1/X2-X1=m

Please let me know if you need any clarification. I'm always happy to answer your questions.