Homework Explained - Math Practice 101

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Grade 8 HMH Go Math - Answer Keys
Chapter 3: Proportional Relationships; Lesson 2: Rate of Change and Slope


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  Guided Practice  

Tell whether the rates of change are constant or variable.

Erica walks to her friend Philip’s house. The graph shows Erica’s distance from home over time.

  • Question 5 (request help)

    Find the rate of change from 1 minute to 2 minutes.

    \(\large\frac{\text{change in distance}}{\text{ change in time}}=\frac{400-\color{red}{?}}{2-\color{red}{?}}=\frac{\color{red}{?}}{\color{red}{?}}\small=\color{red}{?}\text{ ft per min }\)

  •     feet per minute
  • Question 6 (request help)

    Find the rate of change from 1 minute to 4 minutes.

  •     feet per minute

Find the slope of each line.

  Essential Question Check-In  

  • Question 9 (request help)

    If you know two points on a line, how can you find the rate of change of the variables being graphed?

  • Type below:

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