hey :) Identify the vertex, focus, and directrix of the parabola with the equation x^2 – 6x – 8y + 49 = 0
@experimentX hey :) i'm new to this...but do you know how to do this??
do you know the standard equation of Parabola?
ughh, is it ax^2+bx+c
no google it
y - k = a(x - h)^2?
yeah ... can you find directrix, focus and vertex from it?
hm, i don't think so..i get so confused on this stuff :(
do you know what these terms mean?
yeah, sort of
directrix is a line that the parabola that curves away from
not just that ...
i forgot :/ but i know first with have to put the equation into standard form (y - k)² = 4p(x - h) ....sooo
looks like we have excellent video on khan academy http://www.youtube.com/watch?v=ZJf9shWlMz0
it's 14 minutes longg, but okay :)
ooh, i remember this stuff now! kindaa :)
but how do i put 6x – 8y + 49 = 0 into like standard form equation
x2 – 6x – 8y + 49 = 0 **
i don't have that much time to do this :(
no ... |dw:1362692616831:dw|
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