Math Practice 101
Homework Explained - Math Practice 101

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Grade 8 HMH Go Math - Answer Keys
Chapter 6: Functions; Lesson 1:Identifying and Representing Functions


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  Independent Practice  

Determine whether each relationship represented by the ordered pairs is a function. Explain.

  • Question 10 (request help)

    Draw Conclusions

    Joaquin receives $0.40 per pound for 1 to 99 pounds of aluminum cans he recycles. He receives $0.50 per pound if he recycles more than 100 pounds. Is the amount of money Joaquin receives a function of the weight of the cans he recycles? Explain your reasoning.
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  • Question 11 (request help)

    A biologist tracked the growth of a strain of bacteria, as shown in the graph.

    a. Explain why the relationship represented by the graph is a function.
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  • Question 11 (request help)

    b. What If?

    Suppose there was the same number of bacteria for two consecutive hours. Would the graph still represent a function? Explain.
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  • Question 12 (request help)

    Multiple Representations

    Give an example of a function in everyday life, and represent it as a graph, a table, and a set of ordered pairs. Describe how you know it is a function.
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