Directions:
1) Note the cosine function displayed in green in the upper right hand corner of the applet.
2) Move each of the 5 red points up and/or down so that the red wave that passes through these 5 points is the EXACT GRAPH of the purple equation displayed.
(There may be times when the red graph will disappear--and that's okay. It'll reappear as you continue to move these points.)
3) Once you graph the displayed function correctly, the entire graph will turn purple and a "NICE JOB !!!" box will appear.
4) Click on the "Generate New Function to Graph" to display a new equation.
5) Repeat steps (1) - (3). Then repeat step (4).
6) Complete this activity as many times as you need in order to master this concept!**For extra practice with graphing functions of the form "y = a sin(x) + d", go to http://tube.geogebra.org/m/1754071.