7.5 Applications of Exponential Equations Practice

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

Classify the model as Exponential GROWTH or DECAY.
A=1200(.85)⁶

• Growth
• Decay

Tags

CCSS.HSF-IF.C.8B

Classify the model as Exponential GROWTH or DECAY.
A=10(1.01)³

• Growth
• Decay

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

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?

• 9765

• 9006

• 5433

Tags

CCSS.HSF.BF.A.2

You purchased a car for $14,975.  The value of the car DECREASES at a rate of 11.2% per year.  What is the value of the car in 5 years?

• $8268.59

• $25,461.90

• $8807.30

• $27,120.77 

Tags

CCSS.HSF.BF.A.2

Heather

invested $8,000 in a 4-year Certificate of Deposit (CD) that pays 4.1% interest

compounded annually. What is the value of the CD at the end

of the 4 years?

• $9,394.92

• $9,312.00

• $1394.00

• $1312.00

Heather

invested $8,000 in a 4-year Certificate of Deposit (CD) that pays 4.1% interest

compounded annually. What is the value of the CD at the end

of the 4 years?

• $9,394.92

• $9,312.00

• $1394.00

• $1312.00

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

Approximately what interest rate would be needed in order to grow Christian's investment of $1400 to $2500 in 10 years if the interest was compound monthly?

• 5.96%

• 5.84%

• 5.81%

• 5.88%