Question

Which of the following is not a function?

Question 2 options:

{(1,2)(0,9)(3,4)(5,6)}


{(1,2)(3,4)(5,6)(7,8)}


{(1,5)(2,5)(3,5)(4,5)}


{(7,1)(2,4)(7,5)(8,3)}

Answer 1

Answer:D

Explanation:

D, the X values repeat for 7.