Algebra Review Day 2 - Exponential

• 81

• 64

• 27

• 12

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CCSS.6.EE.A.1

Which of the following represents an exponential function?

Which of the following is an example of exponential decay?

• Population of bacteria doubling every hour

• Amount of a radioactive substance decreasing by half every year

• The height of a thrown ball as time increases

• The cost of a car decreasing by a fixed amount each year

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CCSS.HSF-IF.C.8B

• 0

• 1

• 2

• None of the above

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CCSS.HSF-IF.C.7E

• 60

• 90

• 30

• 120

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CCSS.HSF-IF.C.8B

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CCSS.8.EE.A.1

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CCSS.HSA.APR.A.1

 $\frac{9x^2}{3x^{ }}=$  

•  $3x^2$  

•  $3x$ 

•  $9x$  

•  $6x$  

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CCSS.HSA.APR.D.6

A website has 500,000 members in 2020. The number y of members increases by 15% each year. Which function below represents this scenario?

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CCSS.HSF.LE.A.2

• x = 3

• x = 1

• x = 1/3

• x = 10