Question: 1. Parameterize the plane containing the three points (5, 5, 5), (10, -10, 10), (0, 20, 40).
2. Find parametric equations for the sphere centered at the point (2, -1, 3) and with radius 5.
3. Find a parameterization for the plane through (1, 3, 4) and orthogonal to
n→ = 2i→ + j→ - k→