Intuitive Derivative Graphing Exercise: REVAMPED!!!

Below, the graph of a function is shown. [br][br][color=#38761d]The LIGHT GREEN POINTS control the appearance of the entire graph. [br]So to start & during this exercise, please don't touch these. [br][br][/color][color=#bf9000]The [b]YELLOW POINTS [/b]are points that lie on the graph of this function. [br]These points can be dragged anywhere you like on the curve [i]prior to[/i] or [i]during[/i] your completion of this exercise. [br][br][/color][i]The Y-COORDINATE of each WHITE POINT is the same as the slope of the segment passing through the [b][color=#bf9000]yellow point[/color][/b] point directly above it or directly below it.[/i][br][br]Given this information, position the WHITE POINTS in such a way that it causes the segment above it or below it to appear tangent to the graph of the function. By doing so, you will be finding a possible point on the graph of the derivative of this function.[br][br]When you're done positioning the white points, use the pen [icon]/images/ggb/toolbar/mode_pen.png[/icon] tool to sketch the derivative graph based upon your work. To check your work, click the "Check Your Work" checkbox and slowly slide the slider that appears. [br][br]How did you do?
NOTE:
If you would like to try this exercise multiple times, simply use the delete icon [icon]/images/ggb/toolbar/mode_delete.png[/icon] to erase any previous sketches you made. Then, reposition any one (or more) of the four [color=#38761d]green points [/color]to get an entirely different graph. [br][br][i][color=#38761d]Just be sure not to move any green points in the middle of an exercise[/color], at it will change the graph of the entire function. [br][br][/i]Note: [br]If you do move any of the [color=#38761d]light green points[/color] and the function graph disappears, simply refresh the page in your browser.
Quick (Silent) Demo

Information: Intuitive Derivative Graphing Exercise: REVAMPED!!!