Question

Jacob says the following is not a function:

Answer 1

Answer:

he is not correct cuz none of the x factors repeat :)

Answer 2

Answer:

He is wrong

Step-by-step explanation:

for it to not be a function the x coordinates would have to repeat at some point

ex if it was not a solution:

(1,5)(1,8) (3,7) (5,9) (7,11)

as you can see the 1 repeats which makes it not a function but because your doesn't have anything repeating then its a function