Form 9: Real-World Context - Identifying Rate of Change (Slope)
Identify the rate of change as slope within real-world word problems and scenarios. Learn to interpret dynamic quantities in practical contexts.
Questions
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MultiChoice
A taxi charges $20 flat fee plus $15 per hour. In y = 15x + 20, what represents the slope?
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MultiChoice
A savings account starts with $100 and grows by $50 per month. What is the rate of change?
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MultiChoice
A candle is 30 cm tall and burns down at 2.5 cm per hour. What is the slope?
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MultiChoice
A car travels at a constant speed of 60 miles per hour. What is the slope of the distance-time line?
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MultiChoice
A tank holds 12,000 gallons of water and drains at 500 gallons per minute. What is the rate of change?
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MultiChoice
A gym membership costs $40 sign-up plus $12 per month. What is the slope of the cost function?
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MultiChoice
A bakery sells cupcakes for $2.25 each and has fixed daily equipment costs of $10. What is the slope?
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MultiChoice
The temperature starts at 50 degrees F and drops 3 degrees F per hour. What is the slope?
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MultiChoice
A plant grows 0.5 inches per week after starting at 5 inches tall. What is the slope?
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MultiChoice
A plumber charges $25 flat call fee plus $8 per hour worked. What is the unit rate (slope)?
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MultiChoice
A cell phone battery is at 100 percent and drains 15 percent per hour. What is the slope?
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MultiChoice
An artist charges $100 base design fee plus $35 per hour painting. What is the rate of change?