Question 1144960: For y= -3 + 3, is this a function? If so, find its domain and range. If not, give your reason
Could someone please explain how to solve this problem? Thank you.
Answer by ikleyn(52778)   (Show Source):
You can put this solution on YOUR website! .
In order to judge, is the given mathematical object a function or not, you should have a DEFINITION of this object as a function.
This definition might be DIRECT and EXPLICIT, or clear from a context.
An equation is NOT a definition of a function.
Even an expression is not a definition of a function, although at some context it might be.
In the given post, there is NO definition of the function "y", NEITHER explicit NOR from the context.
Therefore, there is no a base to discuss the subject.
Mathematics is not playing words.
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