Question

Tell whteher the given order pairs satisfy a function. If so, is it a linear function?
(2,5) , (2,4) , (2,3) , (2,2) , (2,1)

Answer 1

A function has exactly one corresponding element in the range for every element in the domain. Another way to say this is that there is only one y for every x. I don't think that will apply here, since there are several values of y, but only one value of x.