Winter Final Review - Math 3

Write an equation that models the following situation:
Samantha's hair was known to grow very rapidly. It began at a length of 6 in and grew at a rate of 14% a week.

• y=6(0.14)^x
• y=6(1+14)^x
• y=6(1.14)^x
• y=6(0.86)^x

Tags

CCSS.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

Tags

CCSS.HSF.LE.A.2

What is the decay rate in the following model?

A=1200(.85)⁶

• 1200

• .15

• .85

• 6

Tags

CCSS.HSF-IF.C.8B

What is the decay factor in the following model?
A=1200(.85)⁶

• 1200
• -.15
• .85
• A

Tags

CCSS.HSF-IF.C.8B

Daniel’s Print Shop purchased a new printer for $35,000. Each year it depreciates at a rate of 5%. How much will the printer be worth in 8 years?

• $23,219.72
• $136.72
• $51,710.94
• $16,710.94

Tags

CCSS.HSF.BF.A.2

A population of fish starts at 8,000 and decreases by 6% per year. What is the population of fish after 10 years?

• 14327
• 4309
• 839
• 7680

Tags

CCSS.HSF-LE.A.1C

The number of mosquitoes at the beginning of the summer was 4,000. The population of mosquitoes is expected to grow at a rate of 25% a month. How many mosquitoes will there be after 4 months?

• 9766
• 9006
• 9765
• 5433

Tags

CCSS.HSF.BF.A.2

How can you determine from an exponential equation if it models exponential decay?

• The equation will have an a value that is greater than 1

• The equation will have a b value that is greater than 1

• The equation will have a b value that is less than 1

• The equation will have an a value that is less than 1

Tags

CCSS.HSF-IF.C.8B

Rewrite this equation in exponential form.

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• 
• 
• 

Tags

CCSS.HSF.BF.B.5

Rewrite this equation in exponential form.

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• 
• 
• 

Tags

CCSS.HSF.BF.B.5