Use 5-7 complete sentences to answer all of the following items. given the following ordered pairs: (3, 2) (2, 4) (5,-3) (6.-7) (0,0) explain how to determine the following and also write the correct answers where needed.

3. is this relation described by the ordered pairs a function? how did you determine if this was a function? what test(s) / method(s) did you use?

4. give an equation for a line that is not a function.