Introduction to Exponential Functions and Graphing

Is the following function an example of decay or growth? f(x) = 2(1.25)^x

• Exponential Growth

• Exponential Decay

Identify the y-intercept (initial value) in the function f(x)=13(.27)^x

• (.27)^x
• .27
• 13
• 3.51

What is the x-intercept of the exponential function? 

• (0,1)

• (0,0)

• There is not one

Which variable represents time passed in the function y=ab^x?

• y

• a

• b

• x

What is the equation that best represents the graph?

• y=2^y

• y=2^x

• y=2^-x

• y=x²

What is the domain and range of the function y=2^x ?
Use the graph to help!

•  Domain: −∞<x<∞
  Range: y>0

• Domain: −∞<x<∞
  Range: y>1

• Domain: −2<x<∞
  Range: y>0

• Domain: −∞<x<∞
  Range: y>0

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

• Exponential Growth

• Exponential Decay

• Linear

• None

What type of function is present? f(x) = 2^x? 

• Exponential Growth

• Linear Equation

• Absolute Value

• Exponential Decay 

This is an example of....

• an increasing exponential function

• a decreasing exponential function

• an increasing linear function

• none of the above

This is an example of.....

• exponential decay

• exponential growth

• constant change

• a linear function