Question

Match the given equation with the verbal description of the surface:


A. Cone
B. Elliptic or Circular Paraboloid
C. Plane
D. Half plane
E. Circular Cylinder
F. Sphere
??? 1. r = 4
??? 2. θ = [(π)/3]
??? 3. ρ = 2cos(φ)
??? 4. r = 2cos(θ)
??? 5. ρ = 4
??? 6. r2 + z2 = 16
??? 7. ρcos(φ) = 4
??? 8. φ = [(π)/3]
??? 9. z = r2