Unit 4 Quiz 1 Practice

A small town has a population of 10,000. City planners project a growth rate of 20%.

Answer explanation

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CCSS.HSF.LE.A.2

Jacob shaved his head bald for charity in December. His hair is currently 2 inches long and grows at a weekly rate of 5%.

Answer explanation

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CCSS.HSF.LE.A.2

The tree population in Forest Park is decreasing at a rate of 6%. At the start of 2022, there were about 50,000 trees. Write an exponential decay function to model this situation.

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CCSS.HSF.LE.A.2

The tree population in Forest Park is decreasing at a rate of 6%. At the start of 2022, there were about 50,000 trees. Use the exponential decay function you created in the last question to find how many trees there will be in the year 2029.

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CCSS.HSF-LE.A.1C

A Petri dish currently has 48 bacteria. Each hour, the total number doubles. Write an equation that models this situation.

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CCSS.HSF.LE.A.2

A Petri dish currently has 48 bacteria. Each hour, the total number doubles. Use the equation you used in the last question to find how many bacteria there will be in 5 hours.

Answer explanation

Jacob has a savings account that earns 5% interest annually. How much will be in the savings account in the year 2028. Use the data below to answer.

(Round your answer to the nearest cent. Do not use the $ symbol or a comma.)

Year | Money

--------------------

2023 | $2000

2024 | $2100

2025 | $2205

Answer explanation

Tags

CCSS.HSF.BF.A.2

Use Desmos to create a function for the table. For this to be possible make sure to use the symbols ~, y₁, and x₁.

(For credit, in addition to answer, submit screenshot of your work in Desmos for me to review.)

Answer explanation

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CCSS.HSF.LE.A.2