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4 September, 17:52

Given the function f (x) = - 5|x + 1| + 3, for what values of x is f (x) = - 12?

x = - 2, x = - 4

x = - 2, x = 4

x = 2, x = - 4

x = 2, x = 4

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Answers (1)
  1. 4 September, 18:17
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    -12 = - 5|x + 1| + 3

    -5|x+1| = - 15

    ! x + 1| = - 15/-5 = 3

    So

    x+1 = 3 OR x + 1 = - 3

    x = 2, x = - 4 is the answer
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