Question

which set of ordered pairs does not represent a function? answer {(7,1),(-1,7),(6,-2),(4,1)} {(8,-5),(0,1),(-1,2),(5,4)} {(-2,-8),(-8,8),(-6,5),(5,-8)} {(-1,6),(8,-5),(-1,-8),(3,5)}

Explanation:

Step1: Recall function definition

A function is a relation where each input (x - value) has exactly one output (y - value).

Step2: Check each set of ordered pairs

For the set $\{(-1,6),(8, - 5),(-1,-8),(3,5)\}$, the input $x=-1$ has two different outputs ($y = 6$ and $y=-8$). While in the sets $\{(7,1),(-1,7),(6,-2),(4,1)\}$, $\{(8,-5),(0,1),(-1,2),(5,4)\}$ and $\{(-2,-8),(-8,8),(-6,5),(5,-8)\}$ each x - value has a unique y - value.

Answer:

$\{(-1,6),(8, - 5),(-1,-8),(3,5)\}$