**The graphic calculator!**

**ON**: (on) duh

**OFF**: (2nd)(on)

Write your equation for the graph: (y=)

Once the equation is set, you will see your equation by pressing (trace)

**ZoomBox**= Zoom to certain area that you selected.

You'll see a blinking cursor, set it to where your zoom's upper-left corner is. (Enter) Then set it to where the zoom's lower-right corner is. (Enter) it would zoom to your desired zoom

**Alternatively,**you can set the max of X and Y axes by pressing (window) and setting to how far of each axis you want to see.

**Calculate on the graph:**(2nd)(trace)

**Value:**of Y when X is ____

**Maximum:**the maximum turning point for a ∩ shaped curve

**Minimum:**the minimum turning point for a ∪ shaped curve

For use of both the above, find the left and right bounds, where you think the maxi/mini is. Then make a guess on where the maxi/mini point is. The calc will help find it for you afterwards.

:D :D :D :D

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