Investing Exponential Functions

What type of pattern do exponential functions have?

• Adds or subtracts by the same number every time

• Multiplies or divides by the same number every time

• Square roots all the inputs

Which equation is represented by the table?

• y = 40(2)^x

• y = 40(1/2)^x

• y = 40 - 2x

• y = 40 - 1/2x

Write the function for the following table:

• f(x) = 5x + .08

• f(x)= 5x + 2

• f(x) = .08(5)^x

• f(x)= 2(5)^x

• $ 819.20

• $ 1.4

• $ 140

The function y = 24,220 (0.85)^x represents Mr. Bittle's investment in the stock exchange where x is measured in months.

Which statement is NOT true.

• Mr. Bittle loses 85% of his investment monthly

• Mr. Bittle initially invested $24,220

• Each month Mr. Bittle loses 15% of his investment

Create the exponential function with the following attributes:

Asymptote: y = 0

Initial value: 3

Point on the graph: (2, 6)

Growth

In an exponential function, what does the 'b' represent?

• Input

• Rate of change

• Y-intercept

• Output

Which table represents the following equation?

• 
• 
• 
• 

Write an equations that models the data shown.

What type of function is
y = 7(5/4)^x?

• Exponential Growth

• Exponential Decay

• Linear

• None of the above