1. The problem statement, all variables and given/known data I want to know if I did these right. Write a polar equation of a conic with the focus at the origin and the given data. 2. Relevant equations r = (ed) /(1+- cos(theta)) and r = r = (ed) /(1+- sin(theta)) 3. The attempt at a solution Parabola , directrix x = -3 I came up with r = -3/ (1 -cos(θ)) Hyperbola, eccentricity 3, directrix x = 3 I got 9/(1+3cos(θ)) What do you think OK?