Calculate the average rate of change for the graphed sequence from n = 2 to n = 4.


graphed sequence showing (1, -3), (2, -3.5), (3, -6.75), (4, -10.125), (5, -15.1875), (6, -22.78125) A. -6.625

B-03.3125

C-3.0

D-2.0

Verified Answer :

Average rate of chage = [change of y] / [change of x] = [- 10.125 - (-.35)] /[4 - 2] =

= -3.3125

Answer: option B.

Answer:

option: B is correct.

Step-by-step explanation:

we are given the coordinates (x,y) as:

(1,-3),(2,-3.5),(3,-6.75),(4,-10.125),(5,-15.1875),(6,-22.78125).

The average rate of change from \((x_{1},y_{1})\) to \((x_{2},y_{2})\) is defined as:

\(\dfrac{y_{2}- y_{1} }{x_{2}-x_{1}}\)

here we are asked to find the average rate of change for the graphed sequence from n=2 to n=4.

i.e. we need to find average rate of change from (2,-3.5) to (4,-10.125) is given by:

\(\dfrac{-10.125-(-3.5)}{4-2}\\ \\=\dfrac{-6.625}{2}\\ \\=-3.3125\).

Hence the average rate of change from n=2 to n=4 is: -3.3125.

Hence, option B is correct.