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17 November, 13:44

Over what interval is the graph of f (x) = - (x + 8) 2 - 1 decreasing?

0 (-8, 0)

O (8, 0)

( - 0,8)

(-∞, - 8)

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Answers (1)
  1. 17 November, 17:22
    0
    (-∞, - 8)

    Step-by-step explanation:

    f (x) = - (x + 8) ² - 1

    This is a downwards parabola with a vertex at (-8, - 1). So f (x) is decreasing when x < - 8, or on the interval (-∞, - 8).
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