Question

Identify the sequence graphed below and the average rate of change from n = 0 to n = 2.
http://gyazo.com/77dcb86a2ddf5bc616de00d52dbcd1a0

Answer 1

what is n in this graph?

Answer 2

\[a_n=(\frac{ 1 }{ 2 })^n-1\] (the -1 is supposed to be up with the tiny n too) and before 1/2 is either 10 or 20 I can't figure out which

Answer 3

I know average rate of change is 15 at least i think

Answer 4

Ok, from the graph we have these points: (1,10), (2,5) and (4,1.25)

Answer 5

a_n = 10*(1/2)^(n-1)
for n = 0:
a_0 = 20
for n = 1:
a_1 = 10
for n = 2:
a_2 = 5
for n = 3:
a_3 = 2.5
...

Answer 6

for n = 4:
a_4 = 1.25

Answer 7

oh and for average rate of change I meant 15/2

Answer 8

that represents sequence in teh graph

Answer 9

would average rate of change be right or since its becoming less would I put -15/2

Answer 10

How did you find this rate of change?

Answer 11

Yes it will be -15/2