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23 January, 10:45

Over which interval is the graph of f (x) = 1/2 x2 + 5x + 6 increasing?

A) (-6.5, ∞)

B) (-5, ∞)

C) (-∞, - 5)

D) (-∞, - 6.5)

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Answers (2)
  1. 23 January, 13:29
    0
    Yeah the answer is indeed B
  2. 23 January, 14:11
    0
    If you look at the graph of f (x) = 1/2 x2 + 5x + 6, you can see that it is increasing at interval (-5, ∞).

    So the answer would be B.
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