luzsoriano51 luzsoriano51

19-05-2017
Mathematics

contestada

Find the x-intercepts of the parabola with vertex (-7,45)

Respuesta :

naomigarciaa12 naomigarciaa12

19-05-2017

Use the vertex form,
y=a(x-h)^2+ky=a(x+7)^2+45
Use the y-intercept to solve for a-200=a(0+7)^2+45
49a+45=-20049a=-245a=-5

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