Question

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

http://assets.openstudy.com/updates/attachments/53e1215de4b002c9d803a56c-memecheaa-1407263105408-08_08_q04a.jpg

Answer 1

−6.625
−3.3125
−3.0
−2.0
@welshfella

Answer 2

@Michele_Laino

Answer 3

the requested rate is given by the subsequent formula:
\[\Large r = \frac{{{a_4} - {a_2}}}{{4 - 2}} = \frac{{ - 10.125 - \left( { - 3.5} \right)}}{{7 - 2}} = ...?\]

Answer 4

umm ok hold on :)

Answer 5

-6.625/5=-1.325

Answer 6

please wait I have made a typo, here are the right steps:
\[\Large r = \frac{{{a_4} - {a_2}}}{{4 - 2}} = \frac{{ - 10.125 - \left( { - 3.5} \right)}}{{4 - 2}} = ...?\]

Answer 7

-3.3125

Answer 8

that's right!

Answer 9

Thanks:)

Answer 10

:)