Linear relations help you figure out and predict real-world things, like how much your phone plan costs or the path a SpaceX rocket will take when it launches. Knowing about linear relationships is useful for things like managing money, understanding economics, and building stuff like bridges and buildings.
Why All the Letters in Algebra? | What is a Variable? | Variables, Expressions & Equations
Testing Solutions to Equations | Representing a Relationship with an Equation | Dividing Both Side of an Equation
One-Step Equations Intuition | Describing Steps When Solving Equations | Two-Step Equation Word Problems
Why aren't we using the Multiplication Symbol?
Evaluating/Solving an Expression with One Variable | Evaluating/Solving an Expression with Two Variables
Evaluating Expressions with Two Variables: Fractions & Decimals | Combining Like Terms
Combining Like Terms: Negative Coefficients & Distribution | Combining Like Terms: Negative Coefficients
Distributive Property | Equations with Parentheses | Reasoning with Linear Equations
Graphing Linear Relationships
What is a Function? | Equations vs Functions | Linear Graphs Word Problems
Graphing a Linear Equation: y=2x + 7 | Dependent & Indepedent Variables
Dependent & Indepedent Variables: Graphing | Writing Equations for Relationships Between Quantities
Introduction to Algebra | Balance when Adding & Subtracting | Introduction to Algebra - Multiplication
Order of Operations (BEDMAS) | Substitution | Equations and Formulas | Basic Algebra Definitions
Expanding (Removing Brackets) | Multiplying Negatives | Distributive Property
Equation of a Straight Line | The Straight Line Graph | Cartesian Coordinates (Ordered Pairs)
Equality Explorer: Basics
Equality Explorer
Equality Explorer: Two Variables
Function Builder
Expression Exchange
Function Builder: Basics
Graphing Lines