Match the equation with its graph.

x = cos3(u) cos3(v)

y = sin3(u) cos3(v)

z = sin3(v)

Determine which families of grid curves have u constant and which have v constant.
u constant

each grid curve is a helix

each grid curve is a circle of radius |u| in the horizontal plane z = sin(u)

each grid curve is a vertically oriented circle

each grid curve is a circle of radius (1 − |u|) in the horizontal plane z = u

each grid curve lies in a plane z = ky that includes the x-axis

the grid curves lie in the vertical plane y = (tan3(u))x through the z-axis