I need to make a table where y=-x using the numbers -3 to 3. I don't understand.

Answer 1

list out numbers for the y column,

-3
-2
-1
0
1
2
3

For each row take the negative,

so we get

-3 3
-2 2
-1 1
0 0
1 -1
2 -2
3 -3