anonymous
  • anonymous
Find the standard form of the equation of the parabola with a focus at (-8, 0) and a directrix at x = 8.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
How do I know if it is horizontal or vertical? do I use x2 = –ay
anonymous
  • anonymous
Look at the directrix, it is x =8 |dw:1437346236528:dw|
anonymous
  • anonymous
The parabola MUST be |dw:1437346268309:dw|

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anonymous
  • anonymous
then, you have formula for that shape, which is ???
anonymous
  • anonymous
y^2 = 4px?????? Wait so is it x = y^2/-32
anonymous
  • anonymous
Yes, for y^2 =4px
anonymous
  • anonymous
but then, you must define what p is
anonymous
  • anonymous
-8?
anonymous
  • anonymous
Yes , p is the x-coordinate of the focus
anonymous
  • anonymous
Ok thankss

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