Question 676499

The domain is all the values that x is allowed to take on.

The range is the set of all possible output values (usually y), which result from using the function formula.

example:

the domain and range of the following relation: 
(–3, 5), (–2, 5), (–1, 5), (0, 5), (1, 5), (2, 5)

I'll just list the x-values for the domain and the y-values for the range:

    domain:  –3, –2, –1, 0, 1, 2

    range:  5

Is the relation a function?
   
Yes, this is an example of a "boring" function: 

every x-value (each is different) goes to the exact same y-value, but even so
this relation is a function that represents the horizontal line {{{y = 5}}}