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3 March, 14:18

Change the quadratic to vertex form.

p (x) = 2x² - 16x + 7

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Answers (1)
  1. 3 March, 14:43
    0
    Vertex form:

    p (x) = 2 (x - 4) ^2 - 25

    Step-by-step explanation:

    p (x) = 2x² - 16x + 7

    a = 2, b = - 16 and c = 7

    x = - b/2a

    = - (-16) / 2 (2)

    = 16/4

    = 4

    Plug x = 4 into the equation to find y

    y = 2 (4) ² - 16 (4) + 7

    y = 32 - 64 + 7

    y = - 25

    Vertex (4, - 25)

    So Vertex form: y = a (x - h) ^2 + k where h = 4 and k = - 25

    so

    p (x) = 2 (x - 4) ^2 - 25
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