Does anyone know a piece of advice, how to draw graphs like

abs(y)=1-x^2?

thanks

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- Apr 26th 2010, 10:07 AMSchderoAbsolute(y)
Does anyone know a piece of advice, how to draw graphs like

abs(y)=1-x^2?

thanks - Apr 26th 2010, 11:02 AMFailure
$\displaystyle |y|=1-x^2$ just meas that $\displaystyle y=1-x^2$

*or*$\displaystyle -y=1-x^2$.

Therefore you can just draw the graph of $\displaystyle y=1-x^2$, and then draw that graph again, but flipped around the x-axis (which changes the sign of the y-coordinates only).

Of course, the resulting figure is*not*the graph of a*function*, but it is the graph of a*relation*(between x and y). - Apr 26th 2010, 11:09 AMAmer
- Apr 26th 2010, 11:19 AMSchdero
Thank s to both!