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13 December, 16:50

The vertex form of the equation of a parabola is x = 8 (y - 1) 2 - 15. What is the standard form of the equation?

A:x = 8y^2 - 16y - 7

B. x = 16y^2 - 2y - 16

C. x = 8y^2 - 4y + 32

D. x = 16y^2 - 4y + 32

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Answers (1)
  1. 13 December, 17:50
    0
    Just expand

    x=8 (y-1) ^2-15

    x=8 (y-1) (y-1) - 15

    x=8 (y²-2y+1) - 15

    x=8y²-16y+8-15

    x=8y²-16y-7

    A is answer
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