G33k
  • G33k
i needed to edit this question :p
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
sleek-feathered one idk
anonymous
  • anonymous
idk i just signed up for fun
anonymous
  • anonymous
i have no idea

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anonymous
  • anonymous
me too
Directrix
  • Directrix
Try this: Three Points Parabola Calculator http://www.analyzemath.com/parabola/three_points_para_calc.html
Directrix
  • Directrix
If you are supposed to show your work, then the calculator will not be helpful.
Directrix
  • Directrix
@G33k Post what pops up as the equation.
Directrix
  • Directrix
Yes. Into the calculator at http://www.analyzemath.com/parabola/three_points_para_calc.html
Directrix
  • Directrix
I got y = 2x^2 + 12x - 4 Let me run the points through again.
Directrix
  • Directrix
y = -2 x^2 + 12x - 4
1 Attachment
Directrix
  • Directrix
I drew the graph at desmos.com
Directrix
  • Directrix
There is an x here: y = -2 x^2 + 12*x - 4
Directrix
  • Directrix
Let's check the standard form requirement before we leave the thread. >> standard form of a parabola This is standard form: y = -2 x^2 + 12*x - 4 so that should be correct.

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