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Chapter 8.8
Applications of linear equations
What You'll Learn
Identify slopes and intercepts from linear equations in different forms
Apply parallel and perpendicular slope relationships to write new equations
Solve linear equations using substitution and elimination methods
Translate real-world scenarios into linear equations and expressions
Calculate rates, costs, and values using linear models
What You'll Practice
1
Finding equations of parallel and perpendicular lines with shared intercepts
2
Solving word problems involving depreciation and appreciation rates
3
Calculating profit, revenue, and cost using linear functions
4
Working with systems of equations to find unknown values
Why This Matters
Linear equations model countless real-world situations you encounter dailyfrom calculating costs and profits in business to understanding depreciation of assets. Mastering these applications prepares you for advanced math courses and careers in finance, engineering, and data analysis.
This Unit Includes
7 Video lessons
Practice exercises
Skills
Linear Equations
Slope
Parallel Lines
Perpendicular Lines
Word Problems
Systems of Equations
Rate of Change
Real-World Applications
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