Question about Texas Instruments TI-84 Plus Silver Edition Graphic Calculator

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Parametric Graphing of Inverse Functions

When I attempt to graph a function and it's inverse in parametric mode


X1: Tsquared + T

Y1: T

X2: T

Y2: Tsquared + T


The calc only graphs both equations in Quadrant I.  They both should be parabolas

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Stevan Milanovic

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See carefully captured images below

Parametric Graphing of Inverse Functions - parametric-graphing-inverse-functions-vmeepxeodbkuphgqq1hkgvwl-1-0.png


Posted on Mar 26, 2016


Edmund Lorenzen

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If your looking to make a parabola out of it add



Those functions are not parabolas. since T² cannot be negative since negative times negative = positive. (unless it's an imaginary number, but thats a different story)

Posted on Feb 08, 2008


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[2nd][Draw][8: DrawInv] [ENTER]
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Hope it helps.

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