Applying and Analyzing Exponential Functions

Which standard is demonstrated when using an exponential function to analyze the growth of an investment?

• Construct viable arguments

• Reason abstractly and quantitatively

• Attend to precision

• Model with mathematics

What is the equation of the horizontal asymptote of the given function?

• y = 2

• x = 1

• DNE

• y = 5

• 1326

• 8150

• 6
  

• 13264

Freddy deposits $900 into a savings account that earns 12% interest per year, compounded quarterly. If he makes no additional deposits or withdrawals, how much money will be in the account after 2 years?

Round to the nearest dollar.

Solve the equation for x.

• 7.389

• 0.693

• 0.0183

• 6.581

Estimate the half-life of the radioactive substance shown in the graph:

• 6 months

• 6 hours

• 1 year

• 1 minute

Town Bank offers a 2.25% interest rate, while Charter One offers 2.8%. Both banks compound interest annually. If Rob wants to set up a new account with $5,000,how much more money will he earn at Charter One over Town Bank after 25 years?

• $1,183.41                fairy wings

• $1,209.79             space suits

• $1,251.63          bubble wrap

• $1,324.10               hula skirts

Mr. T invested $15,000 in an account that pays 5% interest compounding continuously, how much is in the account after 5 years? 

• $15,500.50

• $19,260.38

• $19,260.40

• $21,500.25

Sabra opened an savings account that earns interest each year. The equation y = 5000(1.01)^x represents the account balance, y, of the account that was open for x years.

What is the interest rate on Sabra's account?

• 1.01%

• 99%

• 1%

• 0.01%

In the compound interest formula A=P(1+r)^t what does the A stand for?

• The amount of interest

• The total amount

• The interest rate

• The time