Intro to Exponential Functions

Which of the following represents an exponential growth function?

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CCSS.HSF-LE.A.1A

• It shifts the graph 3 units to the left.

• It shifts the graph 3 units to the right.

• It stretches the graph vertically.

• It compresses the graph vertically.

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CCSS.HSF.BF.B.3

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CCSS.HSF-IF.C.8B

• 10

• 1

• 0.1

• -10

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CCSS.HSF-IF.C.8B

Identify the exponential function that represents exponential decay.

Evaluate for x = 6

• 355.37

• 3.7

• 47.51

• 6

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CCSS.HSF-IF.C.8B

What is the equation that best represents the graph?

• y=2^y

• y=2^x

• y=2^-x

• y=x²

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CCSS.HSF.LE.A.2

Which of the following is an exponential growth function whose initial value is 50?

• y = 50(.05)^x

• y = 50x - 4

• y = (2)^x + 50

• y = 50(1.4)^x

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CCSS.HSF.LE.A.2

A population of insects triples every week. The number of insects is modeled by the function y=5400∙3^x where x is the number of weeks after the population was measured. Use the function to determine how many insects there will be in 2 weeks.

• 9 insects

• 16,200 insects

• 48,600 insects

• 262,440,000 insects

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CCSS.HSF.LE.A.2

Which is the basic form of an exponential function?

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CCSS.HSF-IF.C.7E