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

Ex:

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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Posted on Mar 26, 2016

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If your looking to make a parabola out of it add

X3:T²+T
Y3:-T

X4:-T
Y4:T²+T

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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