Basics on Exponential Functions

• A
  Growth
• B
  Decay
• C
  Both
• D
  Neither

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

• Exponential Growth

• Exponential Decay

• Linear

• None

What is the Range of this function?

• y> 0

• x> 0

• All Real Numbers

• y= 1

In an exponential function, what does the 'a' represent?
f(x) = a ⋅ b^x

• Slope

• y -intercept

• x-intercept

• Common Ratio

Which of the following is an exponential decay model?

• y = 3 * (1/2)^x

• y = 1/2 * (3)^x

• y = -2 * (2)^x

• y = -3 * (3/2)^x

Solve the equation for x.

• 7.389

• 0.693

• 0.0183

• 6.581

Which equation matches the graph?

• y = 2^x+3

• y = 2^x + 3

• y = 2^x

• y = 2^-x

In an exponential function, what does the 'b' represent?
f(x) = a ⋅ b^x

• Slope

• y -intercept

• x-intercept

• Common Ratio

In an exponential function, what is an interpretation of the y-intercept?

• 
  initial amount

• 
  ending amount

• 
  growth factor

• 
  decay factor

Identify each function as representing exponential growth or decay.
f(x) = 5(1.09)^x

• growth

• decay