RATIONAL FUNCTIONS Graphing And Analysis (Page 13 of 19)

As a second example, let's graph the rational function f(x) = (2x^2-7x-4)/(x-3). Enter this function as Y1. Remember to enter the numerator and denominator in parentheses! Once the function is entered, try a standard window.

 Y= key. (Clear the previous functions)

 Left parenthesis key. 2 X,T,theta,n key. x-squared key. Minus key. 7 X,T,theta,n key. Minus key. 4 Right parenthesis key. Divide key.
 Left parenthesis key. 2 X,T,theta,n key. Minus key. 3 Right parenthesis key.

 Calculator screen image.
 ZOOM key. 6: menu selection. Calculator screen image.
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