1.2 Applications and Modeling with Linear Equations
Miller & Gerken, College Algebra 2e — Pages 104-117
Learning Objectives
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Translate word problems into equations
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Solve mixture problems
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Solve uniform motion problems (distance = rate × time)
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Apply problem-solving strategies
Key Concepts
Problem-Solving Strategy
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Read the problem carefully
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Identify what you’re solving for
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Assign a variable
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Write an equation
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Solve and check
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State the answer
Common Problem Types
- Distance-Rate-Time
\[d = r \cdot t\]
- Mixture Problems
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Concentration × Amount = Pure substance
Examples
Example 1. Example 1 (p. XX)
Work through textbook example…
Practice Problems
Problem 1 (p. XX, #YY)
Problem:
My Work:
Answer:
Section Summary
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Key point 1
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Key point 2
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Key point 3