Question

Which relation below is not a function?

A {(2,8)3,-10)(-1,190,-1)}
B {(-3,8}(4,-63-2,63-9,81)
C {(1,9)(5,-8)(-1,3/-2,4)}
D {(1,6)(8,-3)(-1,-6)(8,21}

Answer 1

D is not a function

Explanation:

In the x-values, there is a repeating 8.

Answer 2

I think the answer is c