Mathematics
Grade 8
15 min
Rate of change
Rate of change
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
Want to practice and check your answers?
Sign up to access all questions with instant feedback, explanations, and progress tracking.
Start Practicing Free