Can you help me understand the difference between domain and range?
Domain = set of all possible x-values
Range = set of all possible y-values.
[You can remember this because D comes before R in the alphabet
and x comes before y in the alphabet.]
More specifically:
The domain of a given function is the set of all values which may be
substituted for x in the function's equation.
The range of a given function is the set of all values which may be
obtained by substituting those values for x in the domain in the
function's equation.
Edwin