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    (Original post by creativebuzz)
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     y = 4 + \frac{1}{x} We know the graph crosses the x-axis at y = 0 so:

     x = -\frac{1}{4}

    When x = 0 then 1/x tends to infinity and thus y tends to infinity, so x = 0 is an asymptote.

    p = -\frac{1}{4}, q = 0

    http://www.wolframalpha.com/input/?i=y%3D+1%2Fx%2B4 that's the graph.

    Never heard of the trapezium rule but you could just integrate it
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    (Original post by creativebuzz)
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    For (c) see pages 10/11 of the attached document.
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  1. File Type: pdf Calculus notes no exercises.pdf (556.1 KB, 154 views)
 
 
 
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