Chapter 11 Three-dimensional Space; Vectors
11.1 Rectangular Coordinates in 3-Space; Spheres; Cylindrical Surfaces
1) The distance from (6, 8, 11) to the xy-plane is
A) 6
B) 8
C) 11
D) 14.866069
E) 10
Answer: C
Diff: 1 Var: 1
Section: 11.1
2) The distance from (6, 0, 8) to the origin is
A) 100
B) 36
C) 110
D) 10
E) 210
Answer: D
Diff: 1 Var: 1
Section: 11.1
3) The distance from (-5, -4, -3) to the origin is approximately
A) 2500.00
B) 1681.00
C) 2507.07
D) 7.07
E) 5007.07
Answer: D
Diff: 1 Var: 1
Section: 11.1
4) The surface described by + + is
A) a point
B) a parabola
C) a circle
D) a sphere
E) a line
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