Using TRACE Feature| 1. The TRACE feature is a wonderful tool for understanding the various characteristics of a graph. For illustration purposes we'll use the graph  .Enter this equation as Y1 on the Y= screen.
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| 2. Then use the GRAPH key to graph the function. In this case please graph the function on the standard window by hitting ZOOM 6.
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| 3. After pressing ZOOM 6 the graph should appear. To use the trace feature press the TRACE key. A cursor should appear on the graph at the y-intercept (0, -5.625).
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| 4. We can walk the cursor along the curve in either direction by using the arrow right and arrow left keys.
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| 5. Because the location of the cursor is constantly displayed as we move, finding intervals where the function is positive or negative is simply a matter of watching the sign of y. Use this feature to find the x and y intercepts or points of intersection and more! (Helpful website) http://highered.mcgraw-hill.com/sites/0073022845/student_view0/calculator_keystroke_guide.html Caroline Dingwall ♫♫♫♫ |
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