#### Answer

$(x-1)^2 + (y-2)^2 + (z-3)^2 = 16$

#### Work Step by Step

Equation of a sphere with a center at $(a,b,c)$ and radius $r$:
$(x-a)^2 + (y-b)^2 + (z-c)^2 = r^2$
Plug in the information:
$(x-1)^2 + (y-2)^2 + (z-3)^2 = 4^2$

Published by
Pearson

ISBN 10:
0321947347

ISBN 13:
978-0-32194-734-5

$(x-1)^2 + (y-2)^2 + (z-3)^2 = 16$

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