Math Practice 101
Homework Explained - Math Practice 101

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Grade 8 HMH Go Math - Answer Keys
Chapter 4: Nonproportional Relationships; Lesson 4: Proportional and Nonproportional Situations


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  Independent Practice  

  • Question 9 (request help)

    The graph shows the weight of a cross-country team’s beverage cooler based on how much sports drink it contains.

    a. Is the relationship proportional or nonproportional? Explain.
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  • Question 9 (request help)

    b. Identify and interpret the slope and the y-intercept.
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In 10–11, tell if the relationship between a rider’s height above the first floor and the time since the rider stepped on the elevator or escalator is proportional or nonproportional. Explain your reasoning.

  • Question 10 (request help)

    The elevator paused for 10 seconds after you stepped on before beginning to rise at a constant rate of 8 feet per second.
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  • Question 11 (request help)

    Your height, h, in feet above the first floor on the escalator is given by \(\text{h} = 0.75\text{t}\), where t is the time in seconds.
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Analyze Relationships

Compare and contrast the two graphs.

  • Question 12 (request help)

    Graph A                                      \( \ \ \ \ \ \ \ \  \) Graph B

    y = \(\large\frac{1}{3}\) x                                       \( \ \ \ \ \ \ \)   y = \(\sqrt{x}\)

     \( \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \) 
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