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12-03-2021
Mathematics

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Need this ASAP!
A parabola opening up or down has vertex (0,0) and passes through (-20, 20). Write its
equation in vertex form.

Respuesta :

cwrw238 cwrw238

12-03-2021

Answer:

Below.

Step-by-step explanation:

F(x) = (x - 20)(x + 20)

f(x) = x^2 - 400 This opens upwards.

If it opens down we have:.

f(x) = -(x - 20)(x + 20)

f(x) = -x^2 + 400.

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