Which relation is a function of x?

table 1:
-1,7
2,-9
2,8
3,-4

table 2:
-8,-9
-8,2
1,-9
1,2

table 3:
-5,1
-5,7
-5,-9
-5,2

table 4:
-3,-1
-2,5
4,0
7,-1

table 4

Step-by-step explanation:

for it to be a function it has to have different domains, so you just have to find the table with different first numbers.

yes the total will be same because in both of them the expression.is rearranged but their sign remains the same hence it hss just been shuffled

(1, –1), (16, –4), (36, –6)

step-by-step explanation:

given that the function is

this can also be written as

we have to graph this function and check which list of points lie on the graph

see attachment for graph:

we find that the points lying are (1,-1) (16,-4) and (36,-6)

since square root is there we find that x can only be posiitve but y can be since square root both positive and negative.