# Evaluating Functions - Function Notation - MathHelp.com

## By yourteachermathhelp

YouTube presents Evaluating Functions - Function Notation, an educational video resource on math.

# Introduction to functions

An introduction to functions.

# Understanding inverse trig functions

Sal is given the graph of a trigonometric function, and he discusses ways in which he can change the function to make it invertible.

# Model situations by composing functions

Given the formula of the volume of fuel in a tank as a function of its depth, and the formula of the depth as a function of time, Sal finds the formula of the volume as a function of time, by using function composition.

# Comparing linear functions

Sal is given the formula of a linear function and the graph of another, and is asked to determine which function increases faster.

# Verify that two functions are inverses

Sal explains what inverse functions are. Then he explain how to algebraically find the inverse of a function and looks at the graphical relationship between inverse functions.

# Inverse Relations and Functions

## By WOWmath.org

This videos details the steps on how to find the inverse of a function.

# Inverse Functions - The Basics!

## By PatrickJMT

Inverse Trigonometric Functions http://www.youtube.com/watch?v=bBBUMHe900U All of the fundamental ideas of inverse functions are discussed. What exactly is an inverse function conceptually? Which functions have inverses? How do I graph inverse functions? What are the other basic relationships? I do not actually show how to find an inverse (I thought the video was getting too long!). I also already have videos about how to find inverses, so I will provide a link somewhere!

# Comparing features of functions

Sal is given the formula of one function and the graph of the other, and he determines which features are shared by both functions.

# Using Trig Functions Part II

This video lecture series from Khan Academy on Trigonometry includes Radians and Degrees, Using Trigonometric Functions, The Unit Circle definition of trigonometric function, Graph of the Sine Function, graphs of Trigonometric Functions, Trigonometric Identities, Law of Cosines, Law of Sines, Polar Coordinates and Trigonometric Word Problems..

# Graphs of piecewise linear functions

Sal graphs a piecewise function given its formula. In this case, the function consists of three separate lines.

# Graphs of piecewise linear functions

Sal explains what a piecewise function is, and finds the formula of a piecewise function given its graph.

# Zeros of Polynomial Functions

## By Don Davis

Zeros of Polynomial Functions

# Writing Equations of Exponential Functions

## By drmikedcook

Writing Equations of Exponential Functions

# Writing Equations of Exponential Functions

## By drmikedcook

Writing Equations of Exponential Functions

# Comparing linear functions

Sal is given a table of values of a linear function and four linear graphs, and is asked to determine which graph has the same rate of change as the function represented in the table.

# Comparing linear functions

Sal is given a table of values of a linear function and four linear graphs, and is asked to determine which graph increases faster than the function represented in the table.

# Using Trig Functions Part II

This video lecture series from Khan Academy on Trigonometry includes Radians and Degrees, Using Trigonometric Functions, The Unit Circle definition of trigonometric function, Graph of the Sine Function, graphs of Trigonometric Functions, Trigonometric Identities, Law of Cosines, Law of Sines, Polar Coordinates and Trigonometric Word Problems.