Exponential Growth/Decay and Compound Interest

What multiplier represents a 2% increase

• 2%

• 120%

• 1.02

• 1.2

Tags

CCSS.HSF.BF.A.2

What multiplier represents a 30% decrease?

• 30%

• 70%

• 170%

• 0.3

Tags

CCSS.7.EE.A.1

Write down the multiplier used to calculate a 100% increase.

• 1

• 100

• 200

• 2

Tags

CCSS.HSF-LE.A.1C

"Multiplying by 40%"

This results in...

• an increase of 40%

• a decrease of 40%

• an increase of 60%

• a decrease of 60%

Tags

CCSS.7.EE.A.1

Give the rate of growth:
y = 5(1.27)^x

• 127%
• 27%
• 5

Tags

CCSS.HSF-IF.C.8B

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

• -1200
• -.15
• 6
• -6

Tags

CCSS.HSF-LE.A.1C

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

The value of a painting is $12,000 in 1990 and increases by 8% of its value each year.  Write and evaluate an expression to estimate the paintings value in 2005.

• 1.08(12,000)^t = $36,000
• 12,000(1.08)^t = $38, 066
• 12,000(0.5)^t = $10,000
• 12,000(0.92)^t = $40,000

Tags

CCSS.HSF.BF.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

The Arnold's took out a loan for $195,000 to purchase a home. At 4.3% interest rate compounded annually, how much will they have paid after 30 years?

• $412,749.79
• $529.305.61
• $689,546.99
• $640,891.53

Tags

CCSS.HSF-LE.A.1C