Sequences Review

Find the 20th term for 

 $t\left(n\right)=-9n+12$  

• -180

• 192

• -192

• -168

 $t\left(n\right)=2n+17$  

Find the 12th term.

• 24

• 41

• 17

• 30

Find the explicit equation for the arithmetic sequence:

2, 8, 14, ...

• t(n) = 6n + 2

• t(n) = 6n - 6

• t(n) = 6n - 4

• t(n) = -6n + 4

Find the explicit equation for the arithmetic sequence:

-10, -3, 4, 11...

• t(n)= -7n + 17

• t(n)= 7n - 17

• t(n)= -7n -17

• t(n) = 7n + 17

Create the explicit equation for the geometric sequence:

-2, -10, -50, -250...

• t(n)= (-5)ⁿ * 0.4

• t(n)= (5)ⁿ * -0.4

• t(n)= (-5)ⁿ * -0.4

• t(n) = (5)ⁿ * 0.4

Create the explicit equation for the geometric sequence:

-4, -16, -64, -256...

• t(n)= (4)ⁿ * -1

• t(n)= (-4)ⁿ * -4

• t(n) = (4)ⁿ * 1

• t(n) = (-4)ⁿ * 4

Create the explicit equation for the arithmetic sequence:

-38, -48, -58, -68...

then use it to find the 37th term.

• -408

• -388

• -398

• -378

Identify whether the following sequence is Arithmetic or Geometric and identify the common ratio or difference:

97, 86, 75, 64, ...

• Arithmetic

  Common Difference: 8

• Geometric

  Multiplier: -11

• Arithmetic

  Common Difference: -11

• Geometric

  Multiplier: -8

Identify whether the following sequence is Arithmetic or Geometric and identify the common ratio or difference:

256, 64, 16, 4,...

• Arithmetic

  Common Difference: 4

• Arithmetic

  Common Difference: 0.25

• Geometric

  Multiplier: -4

• Geometric

  Multiplier: 0.25

What is the 7th term for the rule:

t(n) = (0.8)ⁿ * 3

• 0.786

• 0.629

• 14.4

• 2.4