Question

Is this set of ordered pairs a function ?
{ (6,1) (9,2) (6,8) (9,7) (8,3)}

Answer 1

No

Explanation:

x has y

6 has 1 and later said

6 has 8

this could not happen in a function

Answer 2

nope always remember if the x's are the same its not a function :)

Explanation: