15-18 - Center and Radius of a Sphere Show that the equation represents a sphere, and find its center and radius. 15. x + y? + z – 10x + 2y + 8z = 9 16. x + y? + 2? + 4x – 6y + 2z = 10 17. x + y? + 2 = 12x + 2y 18. x + y? + :² = 14y – 6z
15-18 - Center and Radius of a Sphere Show that the equation represents a sphere, and find its center and radius. 15. x + y? + z – 10x + 2y + 8z = 9 16. x + y? + 2? + 4x – 6y + 2z = 10 17. x + y? + 2 = 12x + 2y 18. x + y? + :² = 14y – 6z
Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
Chapter10: Analytic Geometry
Section10.6: The Three-dimensional Coordinate System
Problem 41E: Does the sphere x2+y2+z2=100 have symmetry with respect to the a x-axis? b xy-plane?
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