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21 March, 15:14

The equation represents an ellipse.

Which lines represent the approximate directrices of the ellipse? Round to the nearest tenth.

A. x = - 8.6 and x = 8.6

B. x = - 6.6 and x = 10.6

C. y = - 8.6 and y = 8.6

D. y = - 6.6 and y = 10.6

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Answers (2)
  1. 21 March, 16:01
    0
    Answer: D
  2. 21 March, 18:20
    0
    The answer is D. y = - 6.6 and y = 10.6

    Step-by-step explanation:

    First of all, this is an ellipse with a vertical major axis so it would have to be y = #

    d=a2/c

    d is the distance between the center and the directrix.

    a = 8 b=3

    c2=a2-b2

    =64-9

    c2=55

    = about 7.4

    d=64/7.4

    =8.6

    y = 2+8.6

    y=10.6

    y=2-8.6

    y=-6.6

    Brainliest Answer Maybe?
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Home » Mathematics » The equation represents an ellipse. Which lines represent the approximate directrices of the ellipse? Round to the nearest tenth. A. x = - 8.6 and x = 8.6 B. x = - 6.6 and x = 10.6 C. y = - 8.6 and y = 8.6 D. y = - 6.6 and y = 10.6
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