Answer:
Initial value: 12, rate of change: -2
Explanation:
The rate of change is given by change in the y-values over change in x-values.
There is a constant change of -2 in y-values.
There is also a constant change of 1 in the x-values.
The rate of change is -2
The initial value is when x=0,
So we go back one step, and that will give us (0,12)
Therefore the initial value is 12.