1) Write a simplified equation for the set of points that are equally far from (12, 0) as they are from (3, 0).
2) Write a simplified equation for the set of points that are exactly twice as far from (12, 0) as they are from (3, 0).
3) Given points A(2, 3), B(-1, 4), and C(-2, -2) determine point D so that the slope from A to B equals the slope from C to D, and the slope from B to C equals the slope from A to D.
I know the answer to numbers one and two, but I don't know how to write the equation and I don't know how to draw the parallelogram for number three.