I can understand the coordinate plane and graph an ordered pair.
Click on the link to practice identifying a point on a graph:
Source: www.mathplayground.com
Click on the link for extra practice graphing ordered pairs:
Source: www.mathisfun.com
Click on the link for practice identifying independent & dependent variables:
http://www.ixl.com/math/algebra-1/identify-independent-and-dependent-variables
Source: www.ixl.com