Math

Find the Range

f(x) = -8x^2 - 10x + 7



*** "^" is exponent

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asked by Nicole
  1. The function has a maximum value at
    x = -5/8. At that point, f(x) = -25/8 + 50/8 + 7 = 10 1/8

    There is no lower limit to the function's value.

    The range is -infinity to + 10 1/8

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    posted by drwls

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