Quiz # 1 Review: Sequences & Series & Recursion

A graph of an arithmetic sequence will look like a __________________ function.

• Linear

• Exponential

• Quadratic

• Square Root

A graph of a geometric sequence will look like a __________________ function.

• Linear

• Quadratic

• Exponential

• Cube Root

What is the common difference?

• r = 7

• d = 7

• r = -6

• d = -6

What is the common ratio?

• r = 2

• d = 2

• r = 3

• d = 3

What is the common ratio?

• r = 1/2

• d = 1/2

• r = 2

• d = 2

Write the explicit formula:

• A

• B

• C

• D

What is the 10th term?

• 25/128 = 0.2

• 4/78125

• 51200

• 102400

Write the explicit formula:

What is the sum of the first 15 terms, round to the nearest whole number:

• 200

• 100

• 125

• -99

Joy is taking out a loan. On the first day of each month the loan company charges 1.25% interest on the previous balance. She has set up a payment of $275 per month. The payment is applied after the interest is charged. Write the recursive formula to describe Joy’s balance on the first day of the nth month?