Which of the following lists of orders pairs is a funtion

D

Step-by-step explanation:

For it to be a function, every x value must have 1 unique y value ONLY.

In option A, you can see that the x value of 1 has 2 y values, 1 & 5. So it's not a function.

In option B, you can see that the x value of 0 has 2 y values, 0 & -4. Moreover, the x value of 4 also has 2 y values, 2 & -2. So it's not a function.

In option C, you can see that the x value of -2 has 2 y values, 4 & -4. This is not a function as well.

In option D, each x value has a unique y value that are different. So this is a function.

Answer is option D.

domain is all the x values included in the

0 ≤ x ≤ 2

range is all the y values of the graph

-2 ≤ y ≤ 2

***keep in mind that there are different ways to show domain and range

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