hi i need help on this one problem i’m not completely understanding what to do or what the answer is!!

Answer:
1 is function and 2 is not function.
Step-by-step explanation:
If a linear equation has one output for ever input it is a function. if you give a inout and you get two outputs, it is not a function. the input or x value is called domain and the output or y value is range.
Answer:
Step-by-step explanation:
Starting at 0:8 for every time the x(or the 0) changes up by 1 the y(or the 8) goes down by one
do that with the other but look how the 4:11/12 is diff form the others. This usually means thar is is a pattern so it should look like
3:10
4:11/12
5:13
6:14
7:15/16
8:17