How do you convert x=3x=3 into polar form? Precalculus Polar Coordinates Converting Equations from Polar to Rectangular 1 Answer Eddie Jul 15, 2016 r cos theta = 3rcosθ=3 Explanation: in polar x = r cos theta = 3x=rcosθ=3 Answer link Related questions What is the polar equation of a horizontal line? What is the polar equation for x^2+y^2=9x2+y2=9? How do I graph a polar equation? How do I find the polar equation for y = 5y=5? What is a polar equation? How do I find the polar equation for x^2+y^2=7yx2+y2=7y? How do I convert the polar equation r=10r=10 to its Cartesian equivalent? How do I convert the polar equation r=10 sin thetar=10sinθ to its Cartesian equivalent? How do you convert polar equations to rectangular equations? How do you convert r=6cosθ into a cartesian equation? See all questions in Converting Equations from Polar to Rectangular Impact of this question 1790 views around the world You can reuse this answer Creative Commons License