## anonymous one year ago 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

1. anonymous

−6.625 −3.3125 −3.0 −2.0 @welshfella

2. anonymous

@Michele_Laino

3. Michele_Laino

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

4. anonymous

umm ok hold on :)

5. anonymous

-6.625/5=-1.325

6. Michele_Laino

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

7. anonymous

-3.3125

8. Michele_Laino

that's right!

9. anonymous

Thanks:)

10. Michele_Laino

:)