Hagrid
contestada

Which sequence is modeled by the graph below?
an = one third(27)n − 1

an = 27(one third)n − 1

an = one third(3)n − 1

an = 3(one half)n − 1

Which sequence is modeled by the graph below an one third27n 1 an 27one thirdn 1 an one third3n 1 an 3one halfn 1 class=

Respuesta :

MissPhiladelphia
From the coordinates, we can name out the following terms
a2 = 1
a3 = 3
a4 = 9

The terms belong to a geometric progression with a common ratio of 3.
Solving for the first term or a1
a2 = a1 r^(n-1)
1 = a1 (3)^!
a1 = 1/3

So, the sequence has the equation
an = (1/3) (3)^(n-1)

The answer is the THIRD OPTION.

Otras preguntas