1. The problem statement, all variables and given/known data Determine the eqution for the set of all points (x,y) so that the distnce of (x,y) from (4,0) is twce the distance of (x,y) from (1,0). Describe the set geometrically. 2. Relevant equations 3. The attempt at a solution After looking at this for a little while I figured it would be good to set the distance from the points from x,y to 4,0 equal to twice the distance from x,y to 1,0, I plugged these into the distance formula and got: rad((4-x)^2 + (-y)^2) = 2*rad((1-x)^2+(-y)^2) I'm kind of stuck from there and I don't know if I'm on the right track or not could someone please help. Thanks.