Equation Grapher has the ability of graphing rational equations. The following figure shows the effect of graphing rational equation. The equation of the curve in the graph is y=(x^3+x-1)/(x+3).

The following figure shows the effect of graphing rational equation. The equation of the curve in the graph is y=x+1/x.

 

Graphing Calculator -> equation Grapher -> Graphing Equations -> Rational Equations
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