Find a parametric representation of the given curve:

1. The circle in the plane z=4 centered at (0,0,4) with a radius of 4.

How do i approach this i new how to do this with two variables but with three im confused..

2. The graph of 3x^2 +y^3 in R^2 for 0 < or = y < or = 1.

srry im new and learning latex atm.