## CCSS.MATH.CONTENT.6.EE.C.9: Use variables to represent two quantities in a real-world problem that change in relationship to one another; write an equation to express one quantity, thought of as the dependent variable, in terms of the other quantity, thought of as the independent variable. Analyze the relationship between the dependent and independent variables using graphs and tables, and relate these to the equation. For example, in a problem involving motion at constant speed, list and graph ordered pairs of distances and times, and write the equation d = 65t to represent the relationship between distance and time.

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### Definition--Variables, Unknowns, and Constants--Algebraic Expression This is part of a collection of definitions related to variables, unknowns, and constants. This includes general definitions for variables, unknowns, and constants, as well as related terms that describe their properties.

Variables and Unknowns

### Definition--Variables, Unknowns, and Constants--Assigning Values to Variables This is part of a collection of definitions related to variables, unknowns, and constants. This includes general definitions for variables, unknowns, and constants, as well as related terms that describe their properties.

Variables and Unknowns

### What Is a Coefficient? This is part of a series of definitions that focus on constants, variables, and coefficients. These definition cards can easily be incorporated into a lesson plan.

Variables and Unknowns

### Definition--Variables, Unknowns, and Constants--Constant This is part of a collection of definitions related to variables, unknowns, and constants. This includes general definitions for variables, unknowns, and constants, as well as related terms that describe their properties.

Variables and Unknowns

### Definition--Variables, Unknowns, and Constants--Constant of Proportionality This is part of a collection of definitions related to variables, unknowns, and constants. This includes general definitions for variables, unknowns, and constants, as well as related terms that describe their properties.

Variables and Unknowns

### Definition--Variables, Unknowns, and Constants--Constant of Variation This is part of a collection of definitions related to variables, unknowns, and constants. This includes general definitions for variables, unknowns, and constants, as well as related terms that describe their properties.

Variables and Unknowns

### Definition--Variables, Unknowns, and Constants--Constant Term This is part of a collection of definitions related to variables, unknowns, and constants. This includes general definitions for variables, unknowns, and constants, as well as related terms that describe their properties.

Variables and Unknowns

### Definition--Variables, Unknowns, and Constants--Evaluating an Algebraic Expression This is part of a collection of definitions related to variables, unknowns, and constants. This includes general definitions for variables, unknowns, and constants, as well as related terms that describe their properties.

Variables and Unknowns

### Definition--Variables, Unknowns, and Constants--Models for Numbers This is part of a collection of definitions related to variables, unknowns, and constants. This includes general definitions for variables, unknowns, and constants, as well as related terms that describe their properties.

Variables and Unknowns

### Definition--Variables, Unknowns, and Constants--Models for Variables This is part of a collection of definitions related to variables, unknowns, and constants. This includes general definitions for variables, unknowns, and constants, as well as related terms that describe their properties.

Variables and Unknowns

### Definition--Variables, Unknowns, and Constants--Numerical Expression This is part of a collection of definitions related to variables, unknowns, and constants. This includes general definitions for variables, unknowns, and constants, as well as related terms that describe their properties.

Variables and Unknowns

### Definition--Variables, Unknowns, and Constants--Parameter This is part of a collection of definitions related to variables, unknowns, and constants. This includes general definitions for variables, unknowns, and constants, as well as related terms that describe their properties.

Variables and Unknowns

### Definition--Variables, Unknowns, and Constants--Random Variable This is part of a collection of definitions related to variables, unknowns, and constants. This includes general definitions for variables, unknowns, and constants, as well as related terms that describe their properties.

Variables and Unknowns

### Definition--Variables, Unknowns, and Constants--Range of a Variable This is part of a collection of definitions related to variables, unknowns, and constants. This includes general definitions for variables, unknowns, and constants, as well as related terms that describe their properties.

Variables and Unknowns

### Definition--Variables, Unknowns, and Constants--Solving for the Unknown This is part of a collection of definitions related to variables, unknowns, and constants. This includes general definitions for variables, unknowns, and constants, as well as related terms that describe their properties.

Variables and Unknowns

### Definition--Variables, Unknowns, and Constants--Special Constants This is part of a collection of definitions related to variables, unknowns, and constants. This includes general definitions for variables, unknowns, and constants, as well as related terms that describe their properties.

Variables and Unknowns

### Definition--Variables, Unknowns, and Constants--Unknown This is part of a collection of definitions related to variables, unknowns, and constants. This includes general definitions for variables, unknowns, and constants, as well as related terms that describe their properties.

Variables and Unknowns

### Definition | Variables, Unknowns, and Constants | Variable This is part of a collection of definitions on the topic of variables and constants. These definitions can easily be incorporated into your lesson plans.

Variables and Unknowns

### Definition--Variables, Unknowns, and Constants--Variable Expression This is part of a collection of definitions related to variables, unknowns, and constants. This includes general definitions for variables, unknowns, and constants, as well as related terms that describe their properties.

Variables and Unknowns

### Definition--Variables, Unknowns, and Constants--Verbal Representations for Unknowns This is part of a collection of definitions related to variables, unknowns, and constants. This includes general definitions for variables, unknowns, and constants, as well as related terms that describe their properties.

Variables and Unknowns

### Equations Word Search Puzzle 2 Review key vocabulary on the topic of equations with this interactive and printable word search puzzle.

Applications of Equations and Inequalities, Solving One-Step Equations and Solving Two-Step Equations

### Equations Word Search Puzzle 2 Review key vocabulary on the topic of equations with this interactive and printable word search puzzle.

Applications of Equations and Inequalities, Solving One-Step Equations and Solving Two-Step Equations

### INSTRUCTIONAL RESOURCE: Desmos Tutorial: Linear Functions in Slope Intercept Form In this Slide Show, use the Desmos graphing calculator to explore linear equations in slope intercept form. To see the complete collection of Desmos Resources click on this link.

Graphs of Linear Functions and Slope-Intercept Form

Standard Form

### INSTRUCTIONAL RESOURCE: Math Examples--Linear Functions in Tabular and Graph Form This set of 21 tutorials provides different examples of linear functions in function table and graph form.

Applications of Linear Functions