SOLUTION: Write an equation for the parabola with a vertex (-1,5) and a directrix x=-15

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Question 1016772: Write an equation for the parabola with a vertex (-1,5) and a directrix x=-15
Answer by josgarithmetic(39630) About Me  (Show Source):
You can put this solution on YOUR website!
Directrix is a vertical line, and this directrix is abs%28-15-%28-1%29%29=abs%28-14%29=14 units away from the vertex. The FOCUS is 14 units away from the vertex, but ON THE OTHER SIDE than is the directrix. This means, the focus is (13,5). The axis of symmetry for the parabola is horizontal and the parabola opens toward the right.

What is the equation for a parabola with focus (13,5) and directrix x=-15?

This instructive video should help you:
Equation for Parabola, Vertex NOT at Origin