SOLUTION: Ummm... I am wondering now if these second to the last two items which are the table of values in my first activity are functions or not?? Could somebody please solve these for me,

Question 1169162: Ummm... I am wondering now if these second to the last two items which are the table of values in my first activity are functions or not?? Could somebody please solve these for me, thank you so much!! 🤔
x 2 4 6 8
f(x) 2 6 8 10
x 1 2 3 4
f(x) 1 4 9 16

Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
I'm not clear about the table of values and the second to the last two items.
Both these x and f(x)s are functions.
if the x s are all different and f(x) s are all different they are functions.
When there are two different values of f(x) for the same x, they are not functions.

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