## PATTERNS and FUNCTIONS

### ESSENTIAL CONCEPTS

ESSENTIAL CONCEPTS

Variables can be used to build rules that represent functions. Equivalence means that an expression will produce the same output for

*every*possible input, which can be seen in tables, graphs, and rules.Equations can be written to solve specific questions about real-life situations. Solutions to equations are values that make the equation true, and those solutions can be found using reasoning/guess-and-check, tables, graphs, technology, or algebraic manipulation.

Functions can be represented in multiple ways, including algebraic (symbolic), graphical, verbal, and tabular representations. Links among these representations are important to studying relationships and change.

### UNIT GUIDE

UNIT GUIDE