Algebra

For a complete depth review, I encourage you to read a precalculus book Here are relevant sections for a free online book from OpenStax

• Function Definitions and Concepts
• Linear Functions
• Polynomials and Fractions of Polynomials
• Exponential and Logarithmic Functions

Below are a curated selection of videos to help catch you up as quickly as possible. Let me know if there are additional topics where a short video would be helpful.

To see a larger video, click on the button in the bottom corner of the video player. It may also help to follow along with this two page formula sheet.

Basic Algebra

Understanding with Graphs

• Inequalities and Graphs of Functions

Working Algebraically

• Finding the Domain Algebraically

• Finding Inverse Functions

Applications with Words

• Cost and Piecewise Functions

• Understanding Revenue and Cost Functions

Making Connections

• Exploring absolute value and square root functions to understand why $|x| = \sqrt{x^2}$

• Completing the Square

Exponential Functions

• Compound Interest Formula

Logarithmic Functions

• Review of Logarithmic Functions