- Wed Nov 16, 2011 1:13 pm
- Forum: Intermediate Algebra
- Topic: algebra-conic sections parabola
- Replies:
**1** - Views:
**1313**

A certain parabola passes through the points (5,1) and (13,-7) and has the y-axis as its directrix.what are the coordinates of all points at which the vertex of this parabola could be located ?