Challenge E

All equations must be in slope intercept form (y=mx+b)!  You need to, get y by itself on one side and everything else on the other side of the inequality sign.

Remember!  If you MULTIPLY or DIVIDE by a negative number, the inequality sign flips!  That means that > becomes < and vice versa.

Here's a video to help explain, if you need some help: 

Writing inequalities in slope intercept form 

Graphing systems of Inequalities 

The line x = -1 is a vertical line that crosses -1 on the x-axis.  The inequality in number 3 would be similar, and the inequality sign tells you to shade everything to the right of -1.