Thursday, January 28th
January 28, 2010 by R Davis
Today we practiced graphing inequalities and then we learned how to write inequalities for given graphs. Here are the notes from today:
graphing inequalities and finding inequalities from graphs
Steps to writing inequalites from graphs:
- Identify the y-intercept (if clearly located)
- Identify the slope
- Which side is shaded? (above is › and below is ‹)
- Dashed or solid line? (solid is also equal to, dashed is not equal to)
- Plug the information into slope-intercept form.
- **If you do not have a clear y-intercept, you can use the slope and a point to find the equation by using the point-slope form and then solve for “Y”**