Go Graphic

Online Tutorial -
CG50: Use Trace and G-Solv

Video Transcript


In this tutorial, we're looking at Trace and G-Solv within graph mode. These menus give you access to loads of information about the function that you have graphed. To work along with this tutorial, you'll find it easiest to reset your calculator before starting.

Choose graph mode and type in your equation using the X Theta T Key for X. Use the cursor right before you enter the -2, so that it doesn't appear in the power. And when you've finished typing, press F6 to draw the graph.

Now press trace and scroll across the graph. Notice the coordinates of each point are given on the screen as you scroll. In this demonstration, you'll see that the curve crosses the access at the 0.1. Using setup, you can switch the derivative on. As you scroll down through the list, you get down to derivative and just choose on. Now when you redraw your graph and trace, the value of DY by DX is also given on the screen. If you want to know the values for a particular point, you can just type in the X coordinate and enter.


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The G-Solv menu, which runs over two screens, has each brick as the label for the keys F1 to F6. The root finds the values of X where the graph crosses the X axis and you can scroll sideways to find the other roots that are in view. G-Solv Max finds the coordinates at the maximum point and G-Solve Min the minimum point. It may even find a turning point when it's not in view. On the second menu, X-Calc finds values of X for a given y value and again you can scroll across to find the other values.

When two graphs are drawn, G-Solv will find the points of intersection.

Return to the table and type into Y2 the equation of the line. And then draw. And go to G-Solv intersection. And again you can scroll sideways to find the other points. Using G-Solv integration is covered in a separate tutorial. You can find additional resources at education.casio.co.uk

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