Algebra
posted by Michael .
Find the domain and range of the relation and state whether or not it is a function. {(1,3) (2,3)(3,3) (4,3)}

domain 1,2,3,4
range 3
yes, it is a function. For each x, there is a single y. If you had added the point 4,3, not a function because for x=4, y can be 3,or3.