Question

14) Is this relation a function? Yes or no? How did you determine this?

Х
-7
-4
-2
-7
y
12
-6
2

Answer 1

no.

I'll explain to u in easy way❤️

any x has to have exactly one function f(x)

we can see that same x value (-7) has two different y values

Answer 2

Not a function. See below the explanation.

Explanation:

Function is a set of relation with different domains. That means we cannot have same or repetitive domain in one set.

Domain is the set of all x-values. So we only focus on x-term. From the table, we notice that there are two same domains which are - 7. Function cannot have the same or repetitive domain.

Therefore, not a function.