Advanced Graphing error?

[lrdheat]

Good explanation, of course.

Why does it not plot for X<0 when the expression is written Y=3Root X ? I was hoping the the CAS would recognize this, and plot both sides. I'm puzzled since the regular graph environment can handle this properly...I don't understand why both graphing apps don't plot the full plot. (This on physical device, latest publicly available version).