Khan Academy: Algebra: Functions (Part Iii)

Sal draws a graphical representation of a function, f(x), and builds and evaluates other functions based on that function.

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...

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]

Functions and graphs are investigated in this video tutorial. Students learn about the algebra concepts through detailed examples. [9:12]

Functions are investigated in this video tutorial. Students learn about the algebra concept through detailed examples. [6:07]

Functions are investigated in this video tutorial. Students learn how to solve functions through detailed examples. [9:53]

Video determining whether a functional relationship exists between a table of data containing different people and their heights. Data from table is graphed in determining the solution. [4:40]

Sal introduces the concept of "range" of a function and gives examples for functions and their ranges. [6:38]

Video solving for the domain and range of a specific function defined verbally. Equation for function is found before defining the domain and range. [3:36]

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