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elisaflemer
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Message 1 of 2
508
Flag Post

Polynomial graphing and inequalities

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HP 50g Graphing Calculator

Hello!

 

I have been trying to plot both the equation 0 = x^5-3x^3+2x^2-3 and the inequality x^5-3x^3+2x^2-3 > 0. However, the graph doesn't show in the screen regardless of how much I zoom out. I have checked flag 3 and tried to set up the plot to "Truth", but nothing works. What am I doing wrong?

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David_M
Level 6
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Message 2 of 2
Flag Post
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Not sure if this is your issue, but make sure that the plot parameter's independent variable (which defaults to an uppercase X) exactly matches what you've got in your equations.  That variable name is case-sensitive, so you need to make sure the equation's variable IDs are the same case as the plot parameter for the independent variable.  Your equations have all the x's as lowercase, so that could be part of the problem.

 

Hope this helps!

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