California Mathmetics-G6-Ch3

Chapter 3: Algebra: Linear Equations and Functions
formula 
linear equation
two-step equation
work backward strategy


3-1: Writing Expressions and Equations
3-2: Solving Addition and Subtraction Equations
Subtraction Property of Equality
Addition Property of Equality
3-3: Solving Multiplication Equations
formula
Division Property of Equality
Solve each equation. Check your solution.
Mid-Chapter Quiz
3-4: Problem-Solving Investigation
Simplify the Problem
1. Read the problem and identify the important words and numbers.
2. Simplify the problem. Keep all of the important words and numbers, but use fewer of them.
3. Simplify it again. Use a variable for the unknown.
3-5: Solving Two-Step Equations
Step 1: Undo the addition or subtraction first.
Step 2: Then undo the multiplication or division.
3-6. Measurement: Perimeter and Area
Perimeter of a Rectangle
Words: The perimeter P of a rectangle is twice the sum of the length l and width w.
Model:
Symbols: P = l + l + w + w,   P = 2l + 2w or 2(l + w)
Area of a Rectangle
The area A of a rectangle is the product of the length l and width w.


Explore 3-7 Measurement Lab: Representing Relationships
3-7: Functions and Graphs
Graph Solutions of Linear Equations
Graphing Equations
Representing Functions: There are 12 inches in one foot.
Extend 3-7: Graphing Calculator Lab: Graphing Relationships


Study Guide and Review
Solving Equations
Perimeter and Area Formulas
Linear Functions
The graph of a linear function is a straight line. Ordered pairs in the form (x, y) can be used to represent a function and graphed on the coordinate plane as part of the graph of the function.
balance

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