Unit 1 - Semester Review

Write the recursive formula for 6, 17, 28, 39, 50....

• f(n) = f(n-1) + 11

  f(1) = 6

• f(n) = f(n-1) - 4

  f(1) = 6

• f(n) = f(n-1) + 9

  f(1) = 6

• f(n) = 11f(n-1)

  f(1) = 6

Write a recursive rule for the sequence 17, 1, -15, -31 . . .

• f(n) = f(n-1) + 16

  f(1) =17

• f(n) = f(n-1) ÷ 17

  f(1) = 17

• f(n) = f(n-1) ÷ 18

  f(1) =17

• f(n) = f(n-1) - 16

  f(1) =17

Write the recursive formula for 4, 8, 12....

• A(1) = 4,

  A(n) = 2⋅A(n-1)

• A(1) = 4,

  A(n) = A(n-1) - 4

• A(1) = 4,

  A(n) = 0.5⋅A(n-1)

• A(1) = 4,

  A(n) = A(n -1) + 4

Write the recursive formula of 13, 9, 5...

• A(1) = 13,

  A(n) = A(n-1) - 4

• A(1) = 13,

  A(n) = A(n -1) + 4

• A(1) = 13

  A(n) = A(n-1) ÷ 2

• A(1) = 13

  A(n) = 0.7A(n-1)

Create the non-recursive Nth Term formula for the sequence:

2, 8, 14, ...

• $f(n)=2+6(n-1)$

• $f(n)=2\ ⋅\ 4(n-1)$
  

• $f(n)=6+2(n-1)$
  

• $f\left(n\right)\ =\ 2\ \cdot\ 4^{n-1}$
  

Find the non-recursive Nth Term formula:

-3, -33, -63, -93, ...

• A(n) = -3 - 30(n -1)

• A(n) = -3 + 30(n -1)

• A(n) = -30 - 3(n -1)

• A(n) = -30 + 3(n -1)

Given the sequence:

25, 21, 17, 13,...

Write the non-recursive Nth Term equation that models the sequence.

• $f\left(n\right)\ =\ 25\ -\ 4^{n-1}$
  

• $f\left(n\right)\ =\ 13\ +\ 4\left(n-1\right)$
  

• $f\left(n\right)\ =\ 25\ -\ 4\left(n-1\right)$

  
  

• $f\left(n\right)\ =\ 13\ +\ 4^{n-1}$

Find the non-recursive Nth Term formula:

-23, -16, -9, -2, ...

• A(n) = -23 + 7(n -1)

• A(n) = -23 - 7(n -1)

• A(n) = 7 - 23(n -1)

• A(n) = 7 + 23(n -1)

Write the non-recursive Nth Term formula for the sequence.

9, 5, 1, -3, ...

•  $f\left(n\right)=9+5\left(n-1\right)$ 

•  $f\left(n\right)=9-4\left(n-1\right)$ 

•  $f\left(n\right)=4+9\left(n-1\right)$ 

•  $f\left(n\right)=9\cdot4^{\left(n-1\right)}$ 

Write the non-recursive Nth Term formula for the sequence.

216, 72, 24, 8, ...

• $f\left(n\right)=216\cdot\left(\frac{1}{3}\right)^{\left(n-1\right)}$

• $f\left(n\right)=8\cdot3^{\left(n-1\right)}$

• $f\left(n\right)=216-144\left(n-1\right)$

• $f\left(n\right)=216\cdot3^{\left(n-1\right)}$