[b][color=#c51414]Directions:[/color][/b][br][br]1) Note the cosine function displayed in green in the upper right hand corner of the applet.[br]2) Move each of the [color=#c51414]5 red points[/color] up and/or down so that the [color=#c51414]red wave that passes through these 5 points[/color] is the EXACT GRAPH of the purple equation displayed.[br](There may be times when the red graph will disappear--and that's okay. It'll reappear as you continue to move these points.) [br]3) Once you graph the displayed function correctly, the entire graph will turn purple and a [b]"NICE JOB !!!"[/b] box will appear.[br]4) Click on the [b]"Generate New Function to Graph" [/b]to display a new equation.[br]5) Repeat steps (1) - (3). Then repeat step (4). [br][b]6) Complete this activity as many times as you need in order to master this concept![/b][br][br][b]**For extra practice with graphing functions of the form "y = a sin(x) + d", go to http://tube.geogebra.org/m/1754071. [/b]