Exponential Growth and Decay

What is the initial value for the equation?

y = 200(1.8^x)

• 200

• 1.8

• 80%

Tags

CCSS.HSF.LE.B.5

What is the growth rate for the equation?

y = 200(1.8^x)

• 200

• 1.8

• 80%

Sally invests $750 dollars into a bank that pays 7% interest.

What is the growth rate?

• 750

• 1.7

• 1.07

• 7%

Tags

CCSS.HSF-IF.C.8B

Sally invests $750 dollars into a bank that pays 7% interest.

What is the initial value?

• 750

• 1.7

• 1.07

• 7%

Determine the rate of growth for the given equation.
 $y=500\left(1.23\right)^t$  

• 123%

• 23%

• 77%

• 1.23

What is the rate of growth for the given equation?
  $y=100,000,000\left(1.05\right)^t$ 

• 5%

• 50%

• 105%

• 1.05

The population of Winnemucca, Nevada, can be modeled by P=6191(1.04)^t where t is the number of years since 1990. What percent did the population increase each year?

• 4%

• 104%

• 96%

• 1.04%

Tags

CCSS.HSF-LE.A.1C

Write the rate of decay of the function as a percent.  $y=12\left(.9\right)^t$  

Write the rate of decay of the function as a percent.  $y=50\left(0.65\right)^t$  

Rhonda deposited $3000 in an account in the Merrick National Bank, earning 4.2% interest, compounded annually. She made no deposits or withdrawals. Write an equation that can be used to find B, her account balance after t years.

• B = 3000(1 – 4.2)^t

• B = 3000(1 + 4.2)^t

• B = 3000(1 – 0.042)^t

• B = 3000(1 + 0.042)^t

Tags

CCSS.HSF.LE.A.2