Contemporary Mathematics

# Key Terms

## 5.1Algebraic Expressions

• variable
• constant
• expression
• equation
• equal sign
• term
• coefficient
• like terms
• Distributive Property

## 5.3Linear Inequalities in One Variable with Applications

• linear inequality
• Addition and Subtraction Property of Linear Inequalities
• Multiplication and Division Property of Linear Inequalities

## 5.4Ratios and Proportions

• ratio
• proportion
• constant of proportionality
• scale
• construct ratios
• solve proportions
• use proportions to solve scaling problems

## 5.5Graphing Linear Equations and Inequalities

• ordered pair
• origin
• points on the axes
• linear equation in two variables
• standards form of a linear equation
• solution
• linear inequality in two variables
• solution to a linear inequality
• boundary line

## 5.6Quadratic Equations with Two Variables with Applications

• monomial
• polynomial
• binomial
• trinomial
• Zero Product Property

## 5.7Functions

• relation
• domain
• function
• mapping
• vertical line test

## 5.8Graphing Functions

• intercepts of a line
• slope
• slope-intercept form

## 5.9Systems of Linear Equations in Two Variables

• system of linear equations
• solutions of a system of equations
• identities
• coincident lines
• consistent system of linear equations
• inconsistent system of linear equations

## 5.11Linear Programming

• linear programming
• objective function
• constraint
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