Answer:
So, based on what I can see,
ON X FOR EACH
-from -7 to -3 (x) it is INCREASING
-from -3 to -1 it is INCREASING DRAMATICALLY
-from -1 to 1 it is DECREASING
-from 1 to 3 it is INCREASING
-from 3 to 5 it is DECREASING
-from 5 to 7 it is remaining CONSTANT.