CCSS.Math.Content.HSF.LE.A.1

Which of the following functions shows an initial amount of $15 and an increase of 35% each year?

• y = 15(35)^x
• y = 15(1.35)^x
• y = 15(0.35)^x
• y = 35(1.15)^x

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CCSS.Math.Content.HSF.LE.A.1

Linear functions cannot have __________.

• An x nor a y
• x + y
• x - y
• xy

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CCSS.Math.Content.HSF.LE.A.1

Solve for x:
3^2x = 27

• 3/2
• -2
• 0
• 5

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CCSS.Math.Content.HSF.LE.A.1

What equation matches the graph?

• f(x) = 3^x
• f(x) = (⅓)^x
• f(x) = log₃(x)

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CCSS.Math.Content.HSF.LE.A.1

Is the pictured graph growth, decay, or linear or none?  

• Exponential Growth
• Exponential Decay
• Linear
• None

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CCSS.Math.Content.HSF.LE.A.1

Your returns (or interest rate) are 8% a year. How long before your investment doubles?

• 9 years
• 8 years
• 7 years
• Never

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CCSS.Math.Content.HSF.LE.A.1

Suppose a culture of bacteria begins with 5000 cells and dies by 30% each year. Write an equation that represents this situation.

• y=5000(0.7)^x
• y=30(5000)^x
• y=5000(1.3)^x
• y=5000x^x

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CCSS.Math.Content.HSF.LE.A.1

What does this graph represent?

• Exponential Decay

• Exponential Growth

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CCSS.Math.Content.HSF.LE.A.1

Which of the following is an example of exponential decay?

• y = 3(5)^x

• y = .5(5)^x

• y = 2(.5)^x

• y = 8(1)^x

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CCSS.Math.Content.HSF.LE.A.1

What type of function describes the story below?You have $5 and triple your money every day.

• Linear

• Quadratic

• Exponential

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CCSS.Math.Content.HSF.LE.A.1