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7 March, 12:52

What is the vertex and the equation of the axis of symmetry of the graph of y=x^2-6x-7

A. vertex: (-16, 3)

a. o. s: x = - 16

B. vertex: (-3, 20)

a. o. s: x = - 3

C. vertex: (3,-16)

a. o. s: x = 3

D. vertex: (20, - 3)

a. o. s: x = 20

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Answers (1)
  1. 7 March, 13:34
    0
    Using the formula x = - b / (2a) We get x = 6/2=3 There is only one choice with x = 3 so c is the answer
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