Use the formula for average rate of change over an interval of two points:
![\frac{y_2 - y_1}{x_2 - x_1}](https://tex.z-dn.net/?f=%5Cfrac%7By_2%20-%20y_1%7D%7Bx_2%20-%20x_1%7D)
We have two points: (-2, -1) and (0, -1). Plug the values into the formula:
![\frac{-1 - (-1)}{0 - (-2)} = \frac{0}{2} = 0](https://tex.z-dn.net/?f=%20%5Cfrac%7B-1%20-%20%28-1%29%7D%7B0%20-%20%28-2%29%7D%20%3D%20%5Cfrac%7B0%7D%7B2%7D%20%3D%200%20)
The average rate of change over the interval [-2,0] is
0.
Answer:
D makes an annuity. for annuity u have to make equal deposit regularly. so i think its D