Identifying and writing sequences

Find the first four terms of the sequence given the rule:

 $a_n=4\cdot(5)^{n-1}$  

• 20, 100, 500, 2500

• 5, 20, 80, 320

• 4, 20, 100, 500

• 4, 9, 14, 19

Find the first four terms of the sequence.

a_n= 2a_(n-1) + n where a₀= 0

• 0, 0, 0, 0

• 0, 1, 4, 11

• 0, 1, 2, 4

• 0, 2, 4, 8

Find the three terms in the sequence after the last one given.

243, 81, 27, 9, ___, ___, ___,...

• $3,\ \frac{1}{3},\ \frac{1}{9}$

• $3,\ 9,\ 27$

• $3,\ 6,\ 1$

• $3,\ 1,\ \frac{1}{3}$

Find the first four terms of the sequence.

a_n= 6n - 1

• 6, 12, 18, 24

• 5, 11, 17, 23

• 0, 6, 12, 18

• 6, 7, 8, 9

What is the next number? 1680, 1780, 1880, _________

Find U₁₄

• 14,348,907

• 4,782,969

• 1,594,323

• 45

Determine the next 3 terms of the arithmetic sequence:

10, 13, 16, 19, ...

• 21, 24, 27

• 22, 25, 28

• 25, 28, 31

• 3, 6, 9

What does d represent?

• any term

• first term

• common difference

• term number

Given a sequence has the nth term 5n+7 find the 100th term