Question

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

Answer 1

was the sequence (1,4), (2,8), etc ?

Answer 2

The sequence (points on the graph) is complicated :/ it's
(1,-3) (2,-3.5) (3,-6.75) (4,-10.125) (5,-15.1875) (6,-22.78125)

Answer 3

@phi and @dinamix

Answer 4

which points correspond to n=2 and n= 4 ? (I would choose the 2nd and the 4th!)

Answer 5

the average rate of change is also the *slope* between those 2 points.

do you know how to find the slope = change in y divided by change in x ?

Answer 6

Yes :)
Give me a sec to try and solve this

Answer 7

I got -3.3125, which is one of the answers!! Thanks soo much :)

Answer 8

yes, that looks good.