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Algebra 1

4.1.7 Lesson Summary

Algebra 14.1.7 Lesson Summary

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In this lesson, you learned how to:

  • Explain when a relationship between two quantities is a function.
  • Identify independent and dependent variables in a function, and use words and graphs to represent the function.
  • Explain what descriptions and graphs of functions tell us about situations.

Here are the activities that helped you reach those goals:

  • 4.1.1: Contrasting Two Relationships by Reasoning
    • In this activity, you looked at which relationships represent a function and learned which quantities are functions of the other.
  • 4.1.2: Reasoning Graphically About the Relationship between the Two Quantities
    • In this activity, you sketched graphs about a dog’s movement as distance was a function of time.
    • 4.1.2: Self Check
    • 4.1.2: Additional Resources
  • 4.1.3: Examining Relations and Functions
    • In this activity, you determined if relations are functions by looking at the given inputs and outputs.
    • 4.1.3: Self Check
    • 4.1.3: Additional Resources
  • 4.1.4: Describing Functional Relationships
    • In this activity, you identified the independent and dependent variables in functional relationships. You also determined which variable was a function of the other to make statements about the relationship.
    • 4.1.4: Self Check
    • 4.1.4: Additional Resources
  • 4.1.5: Modeling Relationships between Two Variables
    • In this activity, you summarized everything you have learned in this lesson by identifying independent and dependent variables of a situation, determining which variable is a function of the other, and sketching a graph of the situation.

After these activities, you completed the following practice:

  • 4.1.6: Practice

Checking In

On a scale of 1 to 5, how confident do you feel about the learning goals of this lesson?

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