Is this a function or no I dont think it is but I want to be sure

no it's not a function

You are correct it is not a function

Step-by-step explanation:

The reason is if you look in the x place (x,y) that is the input in this situation and you know a function can only have one output for each input and in this case we see that -3 has two outputs 1 and 5. Also -3 and 3 are two different inputs so if it was a debate between those two it would be a function.

1. is 4 and 2. is 3

step-by-step explanation:

so if you look at the first one you see that 1 is to 4 and 2 is to 8 and so on, so you can see for every 1 there is a times 4 so if it were 3 then it would be 3*4 and it is 12

for number 2 it is 3 because 1 is to 3 and 2 is to 6 so for every 1 there is 3 so if it were 3 then there would be 3*3 = 9

you need to show the graph

step-by-step explanation: