Question

Convert the equation from Rectangular to Polar form: x^2 + y^2 = 9

Answer 1

use below :

\(x^2 + y^2 = r^2\)

Answer 2

x^2 + y^2 = 9 represents a circle of radius 3, right ?

Answer 3

u can replace the entire left hand side by r^2 :

r^2 = 9

r = 3

Answer 4

\(r = 3\) is its polar form.