Identify the surface $x ^ { 2 } + y ^ { 2 } + z ^ { 2 } = 4$ .
A)ellipsoid but not a sphere
B)hyperboloid of one sheet
C)hyperboloid of two sheets
D)cylinder
E)sphere
F)elliptic but not circular paraboloid
G)cone
H)circular paraboloid (figure of revolution)

Question

Quizplus · Accepted Answer

The equation $x^2 + y^2 + z^2 = 4$ represents a sphere centered at the origin with a radius of 2.

Identify the Surface x2+y2+z2=4x ^ { 2 } + y ^ { 2 } + z ^ { 2 } = 4x2+y2+z2=4

Identify the Surface $x ^ { 2 } + y ^ { 2 } + z ^ { 2 } = 4$