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How do you "find the range of a function for a given domain ?

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Hi Christine;
The domain is all the values of x this equation can accommodate.  There are no limitations on x, such as if it is positioned within a denominator thereby eliminating x=0.
DOMAIN...(-infinity, +infinity)
f(x)=y is the range.  This is all possible values of y.  Since there is nothing limiting x, there is nothing limiting its equation results...
RANGE...(-infinity, +infinity)
What are the other problems?