How do you convert #x^2+y^2=9# into cartesian form?

1 Answer
Shwetank Mauria
Nov 6, 2016

The equation #x^2+y^2=9# is already in Cartesian form.

Explanation:

The equation #x^2+y^2=9# is already in Cartesian form.

The relation between Cartesian coordinates #(x,y)# and polar coordinates #(r,theta)# is

#x=rcosteta# and #y=rsintheta# i.e. #x^2+y^2=r^2#

Hence equation in Cartesian form #x^2+y^2=9# can be written in polar form as #r^2=9# or #r=3#

Related questions
See all questions in Converting Equations from Polar to Rectangular
Impact of this question
1971 views around the world
You can reuse this answer
Creative Commons License