1. The problem statement, all variables and given/known data Find an equation y=f(x) for the parametric curve x = cos (theta) y = cos (theta) + sin^(2) (theta) 2. Relevant equations 3. The attempt at a solution I know I need to solve for theta but I'm not sure how to go about this. Can I plug x into the theta's in y or do I use the trig identity sin^(2) + cos^(2) = 1? Thanks in advance!