Review the video from Khan Academy about Plotting a point (ordered pair).
They are plotting an ordered pair on the x (horizontal) axis and y (vertical) axis of the coordinate plane.

Step
2: Exploration

.

In
this exploration,
you will help Shelly and Aramis figure out how hard
it is raining during different periods of the day

Web Math

The most basic plotting skill is to be able to plot x,y points. This page will help you to do that.

In the box to the right, type in some x,y points like this: