HELP PLEASE...I beg of you...Fast and Thanks!

:? I am so scared...My sub...had no freking clue how to teach my math in Algebra 1, so I need somebody to explain this to me.

Inequalities in Two Variables

Graph On a Coordinate Plane:

x=y is greater than or equal to 4

Try the following web site:
http://www.purplemath.com/modules/ineqgrph.htm