Question

Please help! :)
Find the equation that describes the set of all points (x,y,z) that are 3 units from the point (1, -2, 6).

Answer 1

its a 3d circle ....

Answer 2

:) good luckl

Answer 3

I'm not sure what equation to use for this problem. @amistre64

Answer 4

you should already have been exposed to a circle equation in a plane, something about a center and a radius. can you recall how that may have looked?

Answer 5

(x-a)^2 + (y-b)^2 = r^2?

Answer 6

that's right. and how would you bolt on a third dimension (z), do you think?