How do you convert # y = 3# to polar form? Trigonometry The Polar System Converting Between Systems 1 Answer Shwetank Mauria May 24, 2016 #r=3csctheta# Explanation: To convert polar coordinates #(r,theta)# to rectangular coordinates #(x,y)# the relation is #x=rcostheta#, #y=rsintheta#, #r^2=x^2+y^2# Hence #y=3# is equivalent to #rsintheta=3# or #r=3/sintheta# or #r=3csctheta# Answer link Related questions How do you convert rectangular coordinates to polar coordinates? When is it easier to use the polar form of an equation or a rectangular form of an equation? How do you write #r = 4 \cos \theta # into rectangular form? What is the rectangular form of #r = 3 \csc \theta #? What is the polar form of # x^2 + y^2 = 2x#? How do you convert #r \sin^2 \theta =3 \cos \theta# into rectangular form? How do you convert from 300 degrees to radians? How do you convert the polar equation #10 sin(θ)# to the rectangular form? How do you convert the rectangular equation to polar form x=4? How do you find the cartesian graph of #r cos(θ) = 9#? See all questions in Converting Between Systems Impact of this question 2530 views around the world You can reuse this answer Creative Commons License