H. Alg 2 sequence quiz review

Is the sequence arithmetic: 37, 31, 25, 19, ...

• Yes, d = 6

• yes, d = -6

• no. there is not a common difference

Write a simplified formula/rule, a_n, for the following sequence:

5, 8, 11, 14, 17...

• a_n = 3n + 2

• a_n = 8 - 5n

• a_n = 5(3)^n-1

• a_n = 5 + 3n

What is the 100th term in the sequence a_n = 4n-12

• 388

• 40012

• -388

• 100

Given a₁= 5 and d= 2 find a₆

• 13
• 10
• 15
• 17

Match the following

• term number

• What is being multiplied in a geometric sequenc

• Previous Term

• What is being added in an arithmetic sequenc

• Common Difference (d)

• n

• Common ratio (r)

• First Term

• a_n-1

Find the first four terms of the sequence.

a_n= 3(4)ⁿ

• 12, 48, 192, 768

• 12, 144, 1728, 20736

• 12, 24, 36, 48

• 3, 12, 48, 192

Which of the following will give the sum of the first 6 term of the following series:

1 + 7 + 13 + 19 + ...

Find the common difference:  a₂ = 6 and a₆ = -14

• -1
• -5
• -2
• 2

Find the sum:  3 + 8 + 13 + 18 + … + 98 

• 1010
• 140
• 959.5
• 909