Answer
Screenshots of the curve:
- from the 1st octant,
- projection onto the yz plane (part of parabola)
- projection onto the xz plane (polynomial-like)
- projection onto the xz plane ("figure 8")
Work Step by Step
Graphed with Geogebra v.5
In Geogebra, select View-3D and enter the formula as given by the exercise into the input box at the bottom of the screen.