Question

1. Which of the following is NOT a function? *

(10 Points)
O {(2, 3), (4, 7), (8, 6)}
O {(2, 2), (4,4), (8, 8)}
{(2, 3), (4,3), (8,3)}
O {(2, 3), (2, 7), (8, 6)}

Answer 1

the last one isn’t
there can’t be more than 1 of the same x value