# Algebra II

Conceptual videos and worked examples from basic algebra through algebra 2. Includes videos from the former algebra worked examples playlists.

#### Systems of equations and inequalities

What happens when we have many variables but also many constraints.

#### Functions and their graphs

Revisiting what a function is and how we can define and visualize one.

#### Polynomial and rational functions

Exploring quadratics and higher degree polynomials. Also in-depth look at rational functions.

#### Rational expressions

You have probably been wondering whether our powers of algebraic problem solving break down if we divide by the variable or we have entire expressions in denominator of a fraction. Well, they don't! In this topic, you'll learn how to interpret and manipulate rational expressions (when you have one algebraic expression divided by another)!

#### Exponential and logarithmic functions

An look at exponential and logarithmic functions including many of their properties and graphs.

#### Logarithms

Log-a-what? No, this tutorial is about neither chopped wood nor music (actually logarithms do have applications in music), but it is fascinating nonetheless.
You know how to take an exponent. Now you can think about what exponent you have to raise a number to to get another number. Yes, I agree--unstoppable fun for the whole family. No, seriously, logarithms are used everywhere (including to measure earthquakes and sound).

#### Imaginary and complex numbers

Understanding and solving equations with imaginary numbers.

#### Conic sections

A detailed look at shapes that are prevalent in science: conic sections