Mathematics
Grade 7
15 min
Constant rate of change
Constant rate of change
Tutorial Preview
1
A table shows money earned: 2 hours is $20, 4 hours is $40. Find the rate.
2
A car travels 150 miles in 3 hours. What is its constant speed?
3
A graph of a leaking faucet shows a line through (0,0) and (4, 12). What is the rate in mL per minute?
Sample Practice Questions
Easy
A table shows pages read. In 2 minutes, you read 4 pages. In 3 minutes, 6 pages. What is the rate in pages per minute?
0.1
1.2
2.3
3.4
Easy
A factory makes 30 toys in 3 hours. What is the constant rate of production in toys per hour?
0.10
1.15
2.30
3.90
Easy
A graph of a growing puppy's weight shows a line through (0,0) and (2, 10). What is the rate of weight gain in lbs per month?
0.2
1.5
2.8
3.10
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