Unit Test — Unit test Answers

In a geometric sequence, and . What is the 12th term?

If , what is the value of x?

An account is opened with $7,595.96 with a rate of increase of 2% per year. After 1 year, the bank account contains $7,746.90. Assuming no deposits or withdrawals are made, which equation can be used to find y, the amount of money in the account after x years? (Round money values to the nearest penny.)

A sequence is defined by the explicit formula . Which recursive formula represents the same sequence of numbers?

Which is the graph of ?

The amount of interest earned on an account can be represented using the recursive formula . If , and n represents the number of months the money is invested, what is the balance at the end of each month for the first three months?

Which function represents exponential decay?

For what values of x does ?

Ms. Clark earned $29,600 in her third year as a banker and $32,600 in her seventh year. How much did she make in her tenth year? Assume that her yearly salaries form an arithmetic sequence.

Khalid wrote the sequence below.Which formula can be used to find the 10th term of the sequence?

The first term of a geometric sequence is –2 and the common ratio is . What are the next three terms of the sequence?

Which of the following represents a geometric sequence? I II III IV

The explicit rule for an arithmetic sequence is What is the value of the 47th term? Round to the nearest tenth, if necessary.

For what value of x does ?

What is the explicit formula for the arithmetic sequence ?