CCSS.Math.Content.HSF.LE.A.2

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.2

Is the sequence arithmetic: 17, 9, 1, -7, ...

• Yes
• No

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CCSS.Math.Content.HSF.LE.A.2

Which equation matches the graph?

• y = 2^x+3
• y = 2^x + 3
• y = 2^x
• y = 2^-x

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CCSS.Math.Content.HSF.LE.A.2

The value of a car is $15,000 and depreciates at a rate of 8% per year. What is the value after 7 years?

• $800
• $8367.70
• $6600
• $25,707.36

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CCSS.Math.Content.HSF.LE.A.2

Caiden earned $475 from mowing lawns last summer.He deposited this money in an account that pays an interest rate of 3.8% compounded annually. What will be his balance after 15 years?

• $827.52                     (Mr. Williams)       
• $831.10                 (Mrs. Hoch)
• $839.45                    (Mr. Krajunus)
• $846.80                   (Ms. Palombo)

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CCSS.Math.Content.HSF.LE.A.2

Agnes purchases a ring for $200 and it depreciates 6% per year from the date of purchase. Which function models the value V(t) of the ring?

• V(t)=200(1.6)^t
• V(t)=1.06x+200
• V(t)=200(.06)^t
• V(t)=200(.94)^t

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CCSS.Math.Content.HSF.LE.A.2

Write a linear function that has a slope of -2 and passes through the point (-3, 4).

• f(x) = -2x - 2

• f(x) = -2x + 4

• f(x) = =2x + 3

• f(x) = -2x + 2

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CCSS.Math.Content.HSF.LE.A.2

Write a linear function f with the values f(0) = 6 and f(4) = -6.

• y = -3x + 6
• y = -6
• y = 3x - 6
• y = 3x + 6

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CCSS.Math.Content.HSF.LE.A.2

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

• y = 15(35)^x

• y = 15(0.35)^x

• y = 15(1.35)^x

• y = 35(1.15)^x

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CCSS.Math.Content.HSF.LE.A.2

Which exponential equation could represent the graph shown?

• $f\left(x\right)=3^x+4$

• $f\left(x\right)=3^x-4$

• $f\left(x\right)=3^{\left(x+4\right)}$

• $f\left(x\right)=3^{\left(x-4\right)}$

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CCSS.Math.Content.HSF.LE.A.2