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Math Help - Points on a graph

  1. #1
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    Points on a graph

    Can someone please show/explain to me how to do this

    The point (8,5) is on the graph of y=f(x),which point must be on the graph of y=1/f(x)-2

    Thanks
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  2. #2
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    Quote Originally Posted by nuckers View Post
    Can someone please show/explain to me how to do this

    The point (8,5) is on the graph of y=f(x),which point must be on the graph of y=1/f(x)-2

    Thanks
    The point transforms in the same way as the function transforms. Assuming you mean y = \frac{1}{f(x)} - 2:

    (8, 5) \longrightarrow \left(8, \frac{1}{5} \right) \longrightarrow \left(8, \frac{1}{5} - 2\right)
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  3. #3
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    Quote Originally Posted by mr fantastic View Post
    The point transforms in the same way as the function transforms. Assuming you mean y = \frac{1}{f(x)} - 2:

    (8, 5) \longrightarrow \left(8, \frac{1}{5} \right) \longrightarrow \left(8, \frac{1}{5} - 2\right)
    awesome, i get it, thanks so much
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