Wednesday, January 27th
January 27, 2010 by R Davis
Today we started graphing inequalities. Remember the following rules:
- Plot the points like you would with an equation in slope-intercept form.
- > or < is a dashed line
- ≥ or ≤ is a solid line
- > or ≥ is shaded above the line
- < or ≤ is shaded below the line.
- Check your shading by picking 2 test points (one on either side of the line) You shade the area where the point is a solution to the inequality.
Here are the notes from today: graphing inequalities 2010