Question

F(-5,1) D(X=1)
write the equation for the parabola

Answer 1

F, D?

Answer 2

HI
do you now what F and D mean?

Answer 3

focus and vertex

Answer 4

ok i see then we can do it quick if you know what it looks like
the parabola i mean

Answer 5

without that it is very hard
do you know what it looks like when you graph it?

Answer 6

i think you mean "directrix" for D

Answer 7

the focus point and directrix are equal distance from the vertex

Answer 8

probably
it takes half a minute if you know what it looks like
otherwise it take for frickin ever

Answer 9

midpoint between -5 and 1 is -2

therefore vertex is at (-2,1)
distance = 3 (this is denoted as p)

equation:
\[x = \frac{1}{4p}(y-k)^2 + h\]

Answer 10

okay thanks

Answer 11

:)