Which set of ordered pairs represents a function?
A {(1,1),(5, -9), (1,7), (8, -4)}

B {(-9, -1),(-9,5), (9,6), (-7,7)}

C {(-7,7), (1, -9), (6, 7), (-1,3)}

D {(-7, -6),(-4,2), (-7, -9), (1, -6)}

Which set of ordered pairs represents a function A 115 9 17 8 4 B 9 195 96 77 C 77 1 9 6 7 13 D 7 642 7 9 1 6 class=

Respuesta :

Answer:

C

Step-by-step explanation:

The easiest way to solve these problems is usually to just look at the x values and see if any of them appear more than once. If you have 2 or more of the same x value in one set, it isn't a function. If every x value is different, it is a function