amerie27 amerie27
  • 18-09-2017
  • Mathematics
contestada

What's the parabola in vertex for for (-5,0) and has a vertex (-2,1)

Respuesta :

ghanami
ghanami ghanami
  • 20-09-2017

hello :
the parabola's equation is : f(x) = a(x+2)²+1

but ; f(-5) = 0
0 = a(- 5+2)²+1
9a+1=0.....a= -1/9
f(x) = (-1/9)(x+2)²+1

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