Question

Find the standard form of the equation of the parabola with a focus at (7, 0) and a directrix at x = -7.

y = one divided by twenty eightx2
x = one divided by twenty eighty2
-28y = x2
y2 = 14x

Answer 1

where p is the the y of the focus minus the y of the vertex.

Answer 2

The vertex is halfway between focus and directrix.

Answer 3

it a sideways parabola

Answer 4

p=7

Answer 5

When your directrix is x=b, then you have x=4py2

When your directrix is y=b then you have y=4px2.

Answer 6

you should get 1/28

Answer 7

When your directrix is x=b, then you have 4px=y2

When your directrix is y=b then you have 4py=x2.

Answer 8

so b?

Answer 9

yes