FUNCTIONS Inverse Functions (Page 8 of 9)

Now go to the TABLE and enter some values of x. Let's try -5, -1.5, 10 and 79.62. Observe that both compositions always return a y-value that is the same as the x-value, just like the identity function y = x.

 2nd TABLE key.
 Negation key. 5 ENTER key.
 Negation key. 1.5 ENTER key.
 10 ENTER key.
 79.62 ENTER key.		 Calculator screen image.
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