Khan Academy: Analyzing Functions: Comparing Features of Functions 2 Example 3

Learn about functions and x-intercepts.

Learn what happens to different functions as the value of x increases or decreases.

Video continuing to show how to parameterize a torus using two parameters by writing the position vector valued functions. [16:32]

This video demonstrates how to write a two variable inequality given the graph of the inequality on a coordinate plane. Practice problems available. [3:20]

A video exploring whether a function is represented by a given set of points. [4:06]

Video giving an overview of the square root sign. Positive values are then chosen to evaluate the basic quadratic and square root functions, the points are graphed, and the graphs are compared. Graphs are also created with an online...

Learn to find out the intervals when the function is is positive or negative.

Video evaluating combinations and compositions of functions including a piece-wise function. Focus is on understanding function notation. Includes link to additional practice at the top of the video. [9:54]

Video evaluating combinations and compositions of functions by using a function defined by its graph. Includes link to additional practice at the top of the video. [9:14]

Video showing how to solve for a function given a composition of functions and one of the functions. Also shows how the problem can be solved using the different multiple choice options. Includes link for additional practice at the top...