RATIONAL FUNCTIONS Graphing And Analysis (Page 17 of 19)

This is not a very good viewing rectangle, and there is a "false connection" again. However, there is another problem with this graph! The calculator is providing even more misleading information. To prove it, let's evaluate the function at x = -3 using CALC value.

 2nd CALC key. 1: menu selection. Negation key. 3 ENTER key. Calculator screen image.

Notice how the y-coordinate is blank. This function is undefined at x = -3! There is no vertical asymptote there, but the graph "hides" the fact that x = -3 is not in the domain!
Copyright © 2010 Turner Educational Publishing
Go back to the previous page. Go to the next page. Go to the Table of Contents. Go to the Index page. Go to the Quiz page. Exit to the Home page.