Rate of change in a real-world situation
The rate of change is how much the amount changes in each time period. It is negative if the amount goes down.
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A hiker is 46 km from camp and walks toward it at 2 km every hour. What is the rate of change, in km per hour? Write a negative number if it decreases.
Answer: -2
A jar holds 33 coins and 8 more coins are added each week. What is the rate of change, in coins per week? Write a negative number if it decreases.
Answer: 8
A hiker is 45 km from camp and walks toward it at 8 km every hour. What is the rate of change, in km per hour? Write a negative number if it decreases.
Answer: -8
Tip: The rate of change is how much the amount changes in each time period. It is negative if the amount goes down.
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