Find an equation of the largest sphere with center (5,4,9) that is contained in the first octant.

Question

anonymous · Answer

say what?

anonymous · Answer

and r^2 is what?

anonymous · Answer

hold on

anonymous · Answer

(5,4,9)

we can't touch any coordinate plane so if radius >4  we will touch y plane

anonymous · Answer

so r can't be bigger that 4 , r^2 can't be bigger than 16

anonymous · Answer

okay..so how do i go about solving this then?

anonymous · Answer

this was a question on my first test that i didn't get right lol

anonymous · Answer

your sphere is just
(x-5)^2+(y-4)^2+(z-9)^2=16

anonymous · Answer