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

Question

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

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Hải Đăng 1 year 2021-09-02T02:41:35+00:00 1 Answers 0 views 0

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    0
    2021-09-02T02:42:55+00:00

    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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