Welcome :: Homework Help and Answers :: Mathskey.com

Recent Visits

    
Welcome to Mathskey.com Question & Answers Community. Ask any math/science homework question and receive answers from other members of the community.

13,435 questions

17,804 answers

1,438 comments

774,965 users

Find the equation of the sphere,

0 votes

Find the equation of the sphere, with radius 2, and center (-2, 1, -2).?

asked Sep 5, 2018 in PRECALCULUS by abstain12 Apprentice
reshown Sep 5, 2018 by bradely

1 Answer

0 votes

Center C(x_1,y_1,z_1) = C(-2,1,-2)

Radius, r =2

Calculate the sphere equation,

(x-x_1)^2+(y-y_1)^2+(z-z_1)^2 =r^2

(x-(-2))^2+(y-1)^2+(z-(-2))^2 =2^2

(x+2)^2+(y-1)^2+(z+2)^2 =2^2

x^2+4x+4+y^2-2y+1+z^2+4z+4=4

x^2+y^2+z^2+4x-2y+4z+5=0

answered Sep 14, 2018 by lilly Expert

Related questions

...