posted by Sarah .
What is the rule for this function?
Input: -2, Output: -4
Input: 0, Output: -2
Input: 5, Output: -3
Thank You!! :)
The points do not lie in a straight line, so the relation is not linear.
In that case it could be anything,
e.g. they could form a parabola, or a cubic or ....
not enough information