Which sequence is modeled by the graph below?

Question

jaydelv · Answer

attachment

jaydelv · Answer

$$A. a_{n}=\frac{ 1 }{ 3 }(27)^{n-1}$$
B. $$a_{n}=27(\frac{ 1 }{ 3})^{n-1}$$
C. $$a_{n}=(-3)^{n-1}$$

zzr0ck3r · Answer

these are just functions, so plug in the given values of $n$ and see which one corresponds to the graph

zzr0ck3r · Answer

where does 1 map to?

jaydelv · Answer

D. $$a_{n}=3(1/2)^{n-1}$$

jaydelv · Answer

one sec its not opening

phi · Answer

It may not be obvious, but I would match up "x" with "n"
look at your graph.  when x=2, you want a formula that gives 9
I would test n=2 in each formula and see if I get 9

zzr0ck3r · Answer

that would imply (1,3) is on the graph

zzr0ck3r · Answer

You need only to look at the output of $1$.

phi · Answer

zz,  x=1 is not plotted.

jaydelv · Answer

I am not understand at all, I skimmed over this chapter and am solely regretting it

jaydelv · Answer

so bare with me :(

jaydelv · Answer

understanding*

zzr0ck3r · Answer

you are given three sequences

evaluate each one at 1 and you will get (1, 1/3),(1,27) and (1,1)

only one of these is could possibly be on the graph

zzr0ck3r · Answer

@phi exactly

zzr0ck3r · Answer

its plotted, its not in the graph window.

jaydelv · Answer

Oh so which ever one of those that can be plotted?