Algebra Exponential Growth and Decay

What is the equation for the graph of the exponential function?

• y = 4(2)^x

• y = (4)^x

• y = (2)^x

• y = 2(4)^x

Write the multiplier for the following scenario.

A population is decaying at a rate of 5.1% per year.

• 1-5.1

• .949

• 1.051

• .051

The following function represents a bank account. 
g(x) = 200(1.25)^x
What was the initial dollar amount put in the bank?

• $200

• $1.25

• $0.25

• $2.00

What interest rate did the bank give?

• 200%

• 1.25%

• 25%

• 2%

Great Amusements Park has been raising its ticket prices every year, as shown in the table. Write an equation that represents the ticket price for year x.

• y = 5x + 50

• y = 50(1.10)^x

• y = 42.5(1.05)^x

• y = 50(5)^x

Determine the population for year 3 of the table.

• 8.2

• 8.4

• 8.64

• 9

Is this exponential growth or decay?

• Growth

• Decay

• Neither

Is this exponential growth or decay?

• Growth

• Decay

• Neither

Is the pictured graph growth, decay, or linear or none?

• Exponential Growth

• Exponential Decay

• Linear

• None

Is this exponential growth or decay?

• Growth

• Decay

• Neither