U3 L2 Modeling Exponential Functions

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

Tags

CCSS.HSF.LE.A.2

Suppose you deposit $3000 in a savings account that pays interest at an annual rate of 4%. If no other money is added or withdrawn from the account, how much will be in the account after 10 years?

• $3122.18
• $4994.50
• $4440.73
• $86,776.40

Tags

CCSS.HSA.CED.A.1

CCSS.HSF.BF.A.1

CCSS.HSF.BF.A.2

CCSS.HSF.LE.A.1

CCSS.HSF.LE.A.2

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

In 2015, the attendance at a music concert for New Year’s Eve was 25,000 people. The attendance has been increasing at a rate of 2% each year. How many people will attend by the end of 12 years ?

• 26,796

• 29,512

• 31,706

• 34,705

Tags

CCSS.HSF.BF.A.2

If you had a nickel, and doubled the amount every week, how much money would you have in 20 weeks ?

• $27,783.20

• $52,428.8

• $57,357.75

• $48,047.55

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 population of Winnemucca, Nevada, can be modeled by P=6191(1.04)^t where t is the number of years since 1990. What was the population in 2001?

• 21,900 people

• 10,000 people

• 11,000 people

• 9,530 people

The population of Winnemucca, Nevada, can be modeled by P=6191(1.04)^t where t is the number of years since 1990. Is this a Growth or Decay projection and what is the factor?

• Growth of 4 %

• Decay of 4 %

• Growth of 96 %

• Decay of 104 %

Tags

CCSS.HSF-IF.C.8B

You have inherited land that was purchased for $3,000 in 1960. The value of the land increased by approximately 5% per year. What is the approximate value of the land in the year 2021?

• $58,839

• $31,500

• $15,000

• $28,500

Tags

CCSS.HSF.BF.A.2

An adult takes 400 mg of ibuprofen. Each hour, the amount of ibuprofen in the person’s system decreases by about 29%. How much ibuprofen is left after 6 hours? 

• 51 mg
• 284 mg
• 1843 mg
• 116 mg

Tags

CCSS.HSF.LE.A.4