According to the table, the rate of change of the function is of -3.
The rate of change of a function is given by the change in the output y divided by the change in the input x.
In this problem, when x changes by 3, y changes by -9, hence:
[tex]m = \frac{-9}{3} = -3[/tex]
The rate of change of the function is of -3.
A similar problem is given at https://brainly.com/question/24313700