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1 March, 06:50

F (x) = -4x2+12x-9

What is the value of the discriminate of f?

How many x-intercepts does the graph of f have?

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Answers (1)
  1. 1 March, 07:38
    0
    The discriminant of a quadratic is the expression inside the radical of the quadratic formula. b-4 (ac)

    Substitute in the values of a, b, and c

    12 - 4 (-4.-9)

    Simplify each term.

    Raise 12 to the power of 2

    144 - 4 (-4.-9)

    Multiply - 4 by - 9

    144-4 x 36

    subtract 144-44
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