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    How the flap do you find P?



    Two days before my C3 exam, I realise I can't solve these seemingly basic problems. fml :o:
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    Kick it.

    Or give us the question.

    Edit: aha, you have conveniently inserted a diagram making me look like an arse. Oh well.
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    P is the point where the two lines 2 - (x + 1) and 2 + (x+1) meet. Another way to think about it is that it's the point where the modulus sign doesn't matter - when does that happen? There's a geometric argument too.
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    (Original post by Swayum)
    P is the point where the two lines 2 - (x + 1) and 2 + (x+1) meet. Another way to think about it is that it's the point where the modulus sign doesn't matter - when does that happen? There's a geometric argument too.
    Hmm, actually, I don't know.

    :eek:
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    (Original post by Doughboy)
    Hmm, actually, I don't know.

    :eek:
    Draw yourself a graph of y = |x|. There's one point that obviously doesn't fit in with the rest. Find the odd one out... (alternatively, it's the one that looks like P on your graph!)
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    (Original post by Doughboy)
    How the flap do you find P?



    Two days before my C3 exam, I realise I can't solve these seemingly basic problems. fml :o:
    Considering f(x)
    The max value of f(x) occurs when the modulus component is a minimum
    What is the min value the modulus function can take?
    Hence what is the maximum value of f(x)?
    At what value of x does this occur?
 
 
 
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