Online College Courses for Credit

Precalc Lesson 9.4 "Sequences" (Arithmetic Sequences)

Precalc Lesson 9.4 "Sequences" (Arithmetic Sequences)

Author: Chad Bray

To express arithmetic sequences recursively and explicitly

See More

Try Our College Algebra Course. For FREE.

Sophia’s self-paced online courses are a great way to save time and money as you earn credits eligible for transfer to many different colleges and universities.*

Begin Free Trial
No credit card required

37 Sophia partners guarantee credit transfer.

299 Institutions have accepted or given pre-approval for credit transfer.

* The American Council on Education's College Credit Recommendation Service (ACE Credit®) has evaluated and recommended college credit for 32 of Sophia’s online courses. Many different colleges and universities consider ACE CREDIT recommendations in determining the applicability to their course and degree programs.


Video of the Lesson


I noticed an error in the answers to the "On Your Own" problem. Below are the correct answers.

Recursive: an = an - 1 - 7

Explicit: an = -7n + 4

PowerPoint of the Lesson


Write a summary of the lesson. Use proper grammar, spelling, punctuation and complete sentences.

*We will go over the last example and the "On Your Own" problem together in class.

In Class

The next time we meet in class we will complete the assignment below. You may get started on it ahead of time if you'd like.

Pg. 739 #1-10, 21-24, 29-30