Sequences and Series Review

• Diverge

• Converge to 0

• Cannot be determined

Which of the following is a correct description of an arithmetic sequence?

• A term is obtained by multiplying a constant number from the preceding term.

• A term is obtained by squaring the preceding term. c. A term is

• A term is obtained by adding a constant number to the preceding term.

• A term is obtained by extracting the square root of the preceding term.

What does r represent?

• Radical

• Common difference

• Common ratio

Find the common difference or common ratio.

-2, -12, -72, -432, ...

• d = -10

• r = 6

• r = 1/6

• d = 6

A geometric series will converge if...

• r < 1

• r ≥ 1

• r < 0

• 0 < r < 1

∑ is

• a funky looking "E"
• theta
• pi
• sigma

What does a₁ represent?

• Any term

• First term

• Last term

• 10

• 1/2

• 2

• 4

What does r represent?

• Radical

• Common difference

• Common ratio

TRUE or FALSE?

An arithmetic sequence is an example of a linear function.

• True, because having a common difference also means it has a constant rate of change

• False, because it's not shown on a graph