Question

write the standard form of the equation of the parabola whose directrix is x=-1 and whose focus is at (5,-2)

Answer 1

the directrix x=-1 means the parabola is horizontal.
the focus and the vertex must be on the same line so the vertex should be (x,-2).
what is the position of the vertex in respect of the focus and the directrix?

Answer 2

-2

Answer 3

draw and picture of all the information you're given.
since the directrix is vertical x=-1, the line that joins the vertex and focus should be .......

Answer 4

connetcting

Answer 5

im sorry im just very confused