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Find the range of a function by substituting the highest domain possible and the lowest domain possible into the function. There, you will find the highest and lowest range.

Then, you should check all the possible cases in the function where a number could be divided by 0 or a negative number could be square rooted. Remove these numbers from the range.

A good way to check to see if you have the correct range is to graph the function (within the domain, of course).

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Q: How do you find the range with the domain?
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