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18 January, 08:45

1) Given the following equation

f (x) = x2 + 5x - 4

Can you have multiple outputs for each input value? Why or why not? Explain.

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Answers (1)
  1. 18 January, 09:16
    0
    f (x) = x*2+5x-4

    f (x) - x*2-5x+4=0

    (f-5) x-x*2+4=0

    -x*2 + (f-5) x+4=0

    x*2 - (f-5) x-4=0

    d = ( - (f-5)) * 2-4 (1) (-4)

    d=f*2-10f+41

    2 real solutions
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