The answer to your question is,
No, it is not a function. Functions can NOT have more than one of the same x numbers. There are two -3's, making it very easy to determine that it is is not a function.
-Mabel <3
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Here we have four points: {(-2,6), (-3,7), (-4,8), (-3,10)}. Two of them have the same x-coordinate (-3). Thus, this is not a function. Another way to look at this: If x = -3, then y = 7 or y = 10. If there is more than one y-value associated with any x-value, then what you have is not a function.
