1. The problem statement, all variables and given/known data Convert to an equation in polar coordinates y = x^(2) 2. Relevant equations x = r cos (theta) , y = r sin (theta) , tan (theta) = y/x 3. The attempt at a solution Here is my work so far: y=x^(2) so r sin (theta) = (r cos (theta))^2 and r sin (theta) = r^(2) cos^(2) theta. I'm not sure how to move the r's to one side of the equation though. Can I apply tan (theta) = y/x or ? Thanks in advance!