Here's the easiest way. Turn the WHOLE GRAPH counter clockwise until it is sideways! So, if you have a piece of loose leaf paper in front of you, turn it so that the long side is horizontal and the short side is vertical.

Does that make sense, or do I need to explain it better?

Apr 10th, 2015

So, for a graph, the x-axis becomes the y-axis, and the y-axis becomes the x-axis.