Mathematics
Grade 8
15 min
Rate of change
Rate of change
What you'll learn
- Calculate the mean of a data set with up to 10 numbers with 80% accuracy.
- Determine the absolute deviation of each data point in a set of up to 10 numbers with 80% accuracy.
- Calculate the Mean Absolute Deviation (MAD) for a given data set of up to 10 numbers by correctly applying the formula with 75% accuracy.
- Explain in their own words, with at least two sentences, what the Mean Absolute Deviation (MAD) tells us about the spread of data in a set.
Tutorial Preview
1
A car travels from mile 20 to mile 80 in 2 hours. What is its speed?
2
A plant's height is in the table: Day 1, 5cm; Day 3, 11cm. Find its growth rate.
3
A phone plan costs y = 0.10x + 5. What is the cost per text (x)?
Sample Practice Questions
Easy
A bike goes from mile 10 to mile 30 in 2 hours. What is its speed in mph?
0.10
1.15
2.20
3.40
Easy
A baker's sales: Day 2, $50; Day 4, $100. What is the rate of sales per day?
0.$20
1.$25
2.$50
3.$75
Easy
A taxi fare is y = 2x + 3. What is the cost per mile (x)?
0.$1
1.$2
2.$3
3.$5
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Frequently asked questions
What grade level is "Rate of change"?
Rate of change is a Grade 8 Mathematics lesson on ExcelOS.
What will I learn in Rate of change?
You'll be able to: Calculate the mean of a data set with up to 10 numbers with 80% accuracy; Determine the absolute deviation of each data point in a set of up to 10 numbers with 80% accuracy; Calculate the Mean Absolute Deviation (MAD) for a….
Is "Rate of change" free to practice?
Yes. You can read the tutorial preview for free, and signing up for a free ExcelOS account unlocks the full tutorial and all practice questions with instant feedback.
How many practice questions are included with Rate of change?
This lesson includes 25 practice questions across multiple difficulty levels, each with instant feedback and explanations.