Which sequence is modeled by the graph below?
coordinate plane showing the points 2, 1; 3, 3; and 4, 9
an = one third(27)n − 1
an = 27(one third)n − 1
an = one third(3)n − 1
an = 3(one half)n − 1

C is correct.

Step-by-step explanation:

We need to choose correct model by the graph which passes through the points (2,1) (3,3) and (4,9)

Option 1:

Put n=2 and to get a₂=1

False

Option 2:

Put n=2 and to get a₂=1

False

Option 3:

Put n=2 and to get a₂=1

TRUE

Similarly, we will check (3,3) and (4,9)

and we will get true

Hence, The sequence is

1/3 + 1/3 ≠ 2/6 because 1/3 alone = 2/6  

step by step explanation:

1/3 + 1/3 = 2/3       2/3=4/6