Khan Academy: Evaluating Function Expressions: Evaluating a Function Expression

This video continues to look at evaluating functions by looking at examples of evaluating basic composite functions.

In this video students learn to evaluate composite functions.

Evaluate expressions that contain function notation, given the functions' graphs.

This video demonstrates how to evaluate an expression with two variables using substitution. [1:46]

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

Video shows how to simplify expressions showing multiplication and how to write products with variables without multiplication signs. Also shows how to evaluate expressions by substituting in specific variable values. [12:26]

This video introduces to students what a variable, expression, and equation is. It also demonstrates how to substitute values for variables and evaluate expressions and equations using substitution. [6:55]

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 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 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...