ANALYTIC GEOMETRY
1. Find the equation of the directrix of the parabola y^2=16x.
2. The midpoint of the line segment between P1 and P2 (-2, 4) is P (2, -1). Find P1
3. Given an ellipse: x^2/36+y^2/32=1. Determine the distance between foci.
4. Convert the θ = π/3 to the Cartesian equation.
5. Find the coordinates of the point P(2, 4) with respect to the translated axis with origin at (1, 3).
6. The segment from (-1, 4) to (2, -2) is extended three times its own length. Find the terminal point.