brooke945 brooke945
  • 11-04-2018
  • Mathematics
contestada

Write an equation of a parabola with its vertex at the origin and the given characteristics. focus at (0,-2)

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zevms1 zevms1
  • 11-04-2018
[tex]y=- \frac{x^2}{8} [/tex]
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mkryukova19 mkryukova19
  • 11-04-2018
(x-h)²=4p(y-k)
(x-0)²=4p(y-0)   vertex (0,0)
 (x)²=4p(y)  
p=-2-0=-2  
x²=4*(-2)y
x²=-8y
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