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Functions Check-in

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Last updated about 6 years ago
7 questions
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Question 1
1.

Question 2
2.

Question 3
3.

Ms. Tollefson counts 5 bacteria under a microscope. She counts them again each day for four days, and find that the number of bacteria doubled each day - from 5 to 10, and then from 10 to 20, and so on.

Is the relationship between the days and the population of bacteria a function? Why or why not?

Two plumbing companies charge money for each hour of work, plus a one time fee.

The first company, A Plus Plumbing charges according to this table:


The second company, Quality Plumbing, charges according to this graph:

Question 4
4.

How much does A Plus Plumbing cost for each hour of work? what is the one-time fee they charge? Show your thinking and clearly state your answer.

Question 5
5.

How much does Quality Plumbing cost for each hour of work? what is the one-time fee they charge? Show your thinking and clearly state your answer.

Question 6
6.

Can A Plus Plumbing and Quality Plumbing ever charge the same total for the same amount of time? Explan your thinking and/or show your work.

Question 7
7.

Watch the video above. Sketch a graph showing the elevation of the person over time.

The following graph shows the temperature in Deigo's house between noon and midnight one day.

Select all the true statements
Time is a function of temperature
The lowest temperature occurred between 4:00 and 5:00
The temperature was increasing between 9:00 and 10:00
The temperature was 74 degrees twice during the 12-hour period
There was a four-hour period during which the temperature did not change.
This table shows a linear relationshiop between the amount of water in a tank and time.

The water in the tank is increasing at a rate of 2 gallons per minute.
The water in the tank is increasing at a rate of 10 gallons per minute.
The water in the tank is decreasing at a rate of 2 gallons per minute.
The water in the tank is decreasing at a rate of 10 gallons per minute.