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What are the domain and range of the real-valued function f(x)=2 over x?
Select one:
a. The domain is all real numbers except 0. The range is all real numbers except 0.
b. The domain and the range are all real numbers.
c. The domain is x>0. The range is f(x)>0.
d. The domain is all real numbers except 0. The range is all real numbers.
A function is any process that gives a single output for each qualified input. For instance a square root is not a function because it gives two outputs for each input.
f(x)=2 over x You need to get straight on how to present math from a keyboard. There is no function called "over".
f(x)=2/x If your software allows "high bit" symbols then you can use "unicode", but a lot of software does not recognize those characters.
Since your input variable is beneath a fraction bar, it can not be zero. So the domain (the input) is all real numbers except zero. That forces the range (the output) to be all real numbers except zero.
