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Consider the relation .

  1. Find in terms of and .

    Find :

    Find :

    You could simplify now, if you choose.

  2. Find

    Notice that  , which you found in part (a), has both and variables. So, before you evaluate, use the original equation
    to find the -value that corresponds with . It is possible that there will be more than one.

    Use a calculator to find the THREE -values that correspond with .

    Evaluate  at those THREE coordinate points.

  3. Find all points where the derivative is undefined.

     The derivative,  , will be undefined where the denominator equals .