Following are three sample equations. Plot them on a graph in whichQis on the vertical axis andPis on the horizontal axis. Then transform these equations soPis expressed in terms ofQand plot these transformed equations on a graph in whichPis on the vertical axis andQis on the horizontal axis.

1. Q= 250 - 10P
2. Q= 1,300 - 140P
3. Q= 45 - 0.5P