There are 2 ways to determine how figures intersect

1) set y's equal to one another for the 2 equations to determine the x-point of intersection. Put that x-value back into either equation to determine the y-coordinate of intersection.

2) plot out figures

Inequalities – types of lines

• When there is a > or <, use a dottet line

• When there is a ≥ or ≤, use a solid line

Inequalities – shading

• ≤ or < shade below the line

• ≥ or > shade above the line