Sequences and Series Precalculus

Find the first 6 terms of the sequence.

• 13, 19, 25, 31, 37, 43

• 7, 13, 19, 25, 31, 37

• 1, 7, 13, 19, 25, 31

• 7, 12, 17, 22, 27, 32

Find an explicit rule for the nth term of the sequence.

• a_n= 15+(n-1)4

• a_n= -15+(n-1)4

• a_n= -15+(n-1)3

• a_n= 4n -19

Use the formula S_n to find the sum of the first five terms of the geometric sequence.

• 22

• 2/3

• 18

• 21

Find the sum of the arithmetic series using a formula.

• 516, 240

• 516,242

• 116, 242

• 506, 242

Find S₁₄ for the arithmetic sequence.

• 959

• 36

• 497

• 185

An equation to represent the n^th term of the sequence is known as 

• explicit formula

• arithmetic sequence

• geometric sequence

• recursive formula

A rule that defines the nth term a_n, or a general term, of a sequence as a function of n.

• Explicit Rule

• Arithmetic Sequence

• Recursive Rule

Find the sum of the geometric series.

• 248

• 124

• 120

• 240

Find the limit. Hint: Where is the horizontal asymptote?

• ³/₇

• 0

Find the sum of the infinite geometric series, if it exists.

• 8

• 8/5

• 10

• Does not exist