I need something like the cubic function $y=x^3$ rotated 90 degrees. Which function is that?
Which function is like the cubic function rotated 90 degrees?
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algebra-precalculus
functions
1 Answers
6
$y=-\root3\of x$
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0But x cannot be negative using this function. Are there other ways? – 2012-01-30
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1@Linksku: yes it can. – 2012-01-30
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0I'm not very good at functions. According to the following link, if x is negative, then it curves downwards: http://www.wolframalpha.com/input/?i=plot+y%3D-x%5E%281%2F3%29 Am I missing something? – 2012-01-30
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1Try [this](http://www.wolframalpha.com/input/?i=y+%3D+-sgn%28x%29*abs%28x%29%5E%281%2F3%29). (Wolframalpha only seems to know the complex variant of the cube root.) – 2012-01-30