1. The problem statement, all variables and given/known data Find a point on the parabola y = x^2 whose distance from (18,0) is 4*sqrt(17) 2. Relevant equations I'm guessing I need to use the distance formula, but I'm not entirely sure. D = sqrt( (x2 - x1)^2 + (y2 - y1)^2) 3. The attempt at a solution Well I really don't think I'm doing this right. I tried substituting the given point and distance into the equation, but I'm not really sure where to go from there. 4*sqrt(17) = sqrt( (18 - x)^2 + (0 - y)^2) 272 = y^2 + x^2 - 36x + 324 y^2 = -(x-18)^2 + 272 I'm not really sure what to do. Any help would be greatly appreciated.