Sequences as functions

A sequence is a function on the positive integers. Graph it and connect to linear and exponential models.

Standards:F-IF.A.3F-LE.A.2

Try it: three questions

Real questions from the practice bank. Tap an answer to check it.

Question 1 of 3

A baker increases her daily bread production by a constant factor each week. In week 1 she makes 80 loaves, in week 2 she makes 120 loaves. How many loaves will she make in week 5?

Question 2 of 3

A bacteria population follows the function f(n) = 3·2ⁿ, where n is the number of hours. How many bacteria are present after 5 hours?

Question 3 of 3

A video streaming service charges a one-time setup fee of $15, then $8 per month. Write a function f(n) for the total cost after n months, then find f(6).

How this fits in

Sequences as functions is one skill in the Sequences & Series unit. Students read the unit lesson, then earn a bronze, silver, or gold medal on their last 10 answers. Medals never go down. A mastered unit comes back for review after 1, 3, 7, 16, and 35 days so it stays learned.

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