anonymous
  • anonymous
Derive the equation of the parabola with a focus at (0, 1) and a directrix of y = −1.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
pleasee help
triciaal
  • triciaal
|dw:1438894741326:dw|
triciaal
  • triciaal
F = focus, V = vertex, D = directrix

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triciaal
  • triciaal
everything clear so far
anonymous
  • anonymous
yes
anonymous
  • anonymous
ok what nexT?
triciaal
  • triciaal
vertex (h, k)
anonymous
  • anonymous
whats a and x?
anonymous
  • anonymous
wait just a i meant
anonymous
  • anonymous
like how do u find a
anonymous
  • anonymous
would it be 4 or 1/4?
triciaal
  • triciaal
substitute in the equation
anonymous
  • anonymous
i did, would it be 4 or 1/4?
triciaal
  • triciaal
what did you do?
anonymous
  • anonymous
the answer choices just show a as being either 4 or 1/4
anonymous
  • anonymous
or negative
triciaal
  • triciaal
as in a = -1 right
triciaal
  • triciaal
a cannot be negative because the parabola opens up the D is below F and V is in the middle of FD
triciaal
  • triciaal
went blank sorry
anonymous
  • anonymous
on the worksheet, my choices are 1/4x^2 and 4x^2
anonymous
  • anonymous
do u know which one it is? @triciaal
triciaal
  • triciaal
@zepdrix
anonymous
  • anonymous
oh well, haha. thanks for your help
anonymous
  • anonymous
still neeed help on this

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