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16 September, 23:58

Find the axis of symmetry and vertex.

y=x^2-8x-7

Select one:

a. x = 8; (8,-23)

b. y = 2; (2, - 17)

c. x = 4; (4, - 23)

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Answers (1)
  1. 17 September, 00:20
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    Dy/dx=2x-8, 2x-8=0, x=4

    y (4) = 16-32-7=-23

    (4, - 23)
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