Complete the following questions to practice the skills you have learned in this lesson.
For questions 1 - 4, use the following scenario.
The relationship between the amount of time a car is parked, in hours, and the cost of parking, in dollars, can be described with a function.
- Identify the independent variable in this function.
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Cost of parking
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Amount of time car is parked
- Identify the dependent variable in this function.
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Cost of parking
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Amount of time car is parked
- Correctly describe the function with a sentence of the form “___ is a function of ___ .”
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The cost of parking is a function of the amount of time a car is parked.
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The amount of time a car is parked is a function of the cost of parking.
- Suppose it costs $3 per hour to park, with a maximum cost of $12. Here is a graph of the situation.
What does the point mean in this situation?
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6 hours of parking costs a total of $2
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2 hours of parking costs a total of $6
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6 hours of parking costs $2 per hour
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2 hours of parking costs $6 per hour
- The distance a person walks, , in kilometers, is a function of time, , in minutes, since the walk began.
Select the two statements about the input variable of this function that are true.
- Distance is the input.
- Time of day is the input.
- Time since the person starts walking is the input.
- represents the input.
- represents the input.
- The input is not measured in any particular unit.
- The input is measured in hours.
- For each input, there are sometimes two outputs.
- Determine if the following relation is a function.
{};
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No
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Yes
- Is the following relation a function? Explain your answer.
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No
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Yes
- Determine if the following relation is a function.
{};
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No
-
Yes