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1. Pammela A Says:
   March 12th, 2008 at 7:26 am

   Domain is what x equals and range is what y equals… in this problem the denominator cannot equal zero and the value under the square root cannot be negative.

   to find the domain set
   9 – x^4 >0 and solve for x to get your domain… y depends on x so use this answerr to find out what y will equal

2. foreveryours1606 Says:
   March 12th, 2008 at 7:26 am

   I just did this in class.
   To find the domain of a radical, set the radical greater than or equal to zero, and that's your domain. If the degree is higher than 2, set it to equal zero.

   To find the domain of a rational, set the denominator = to 0 and that number isn't your domain.

   You have both. SO:

   9-x^4=0
   x^4=9 (I multiplied both by -1 so there isn't a neg x)
   fourth root both sides.
   x= plus or minus fourth root of 9

   IDK about the range.

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