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

Is the equation linear, exponential, or quadratic?
y = 2^x

• Linear
• Exponential
• Quadratic
• None of the above

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

What type of function is y = 7(5/4)^x?

• Exponential Growth
• Exponential Decay
• Linear
• None of the above

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

Classify the following graph.

• Exponential Growth
• Exponential Decay
• Logarithmic

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

A 78 gram sample of Uranium loses half of its mass each year.  What is the exponential equation? 

• y=78(0.5)^x
• y=78(1.5)^x
• y=78(2)^x

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

Is the graph linear, exponential or neither?

• Linear
• Exponential
• Neither

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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

Which function will show exponential behavior?

F(x) = (4.3)^x 

or

G(x) = 4.3x + 9

• F(x)
• G(x)
• both
• neither

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

Bob has $150 in his savings account and saves $40 per month. Which function models his savings?

• y = 150 + 40

• y = 40x + 150

• y = 150x + 40

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

Zach's parents put $1,500 in her bank account for college tuition. At an interest rate of 8.25% compounded semi-annually, what will be the balance after 18 years?

• $6,273.50

• $6,314.08

• $6,385.72

• $6,427.94

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

Kelsey deposited $30 in a savings account earning 10% interest, compounded annually. To the nearest cent, how much interest will she earn in 3 years?

• $9.93

• $2.01

• $17.60

• $5.75

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