Understanding Functions

Learning Objectives

• Understand and use function notation accurately.

• Use the vertical line test to determine if a relation is a function.

• Identify the intercept(s) of a function's graph.

• State the domain and range of a function represented in various forms.

• Convert between various representations of functions (for example, write an algebraic equation representing a function described verbally).

• Combine functions to form new functions, in particular composite functions.