This week we reviewed inequalities. This means the signs including <,>,≥,≤ and  ≠. We learned how to graph using them (with linear equations) and how they affect the graph. No mater the sign (not sure about ≠), you will end up shading over (>≥) or under (≤<) the line which will either be regular(≥≤) or dotted(><). We do this because anything over (>≥) or under (≤<) the y value is free game because it’s still true.

Let’s use a couple of simple equations as examples:

y>3x+7: Dotted line and anything over the Y value,

y≤2/5x-3: Regular line and anything under the Y value