RATIONAL FUNCTIONS Graphing And Analysis (Page 16 of 19)

Finally, let's graph the rational function f(x) = (x^2+3x)/(x^2+2x-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. X,T,theta,n key. x-squared key. Plus key. 3 X,T,theta,n key. Right parenthesis key. Divide key. Left parenthesis key. X,T,theta,n key.
 x-squared key. Plus 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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