Algebra Exponential Growth and Decay

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

• SLOPE

• RATE OF CHANGE

• initial amount

• COMMON RATIO

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

• Exponential Growth

• Exponential Decay

• Linear

• None

Suppose a culture of bacteria begins with 5000 cells and dies by 30% each year. Write an equation that represents this situation.

• y=5000(0.7)^x

• y=30(5000)^x

• y=5000(1.3)^x

• y=5000x^x

What is the range for the following function?

• All positive values

• All real numbers

• All negative values

• 0

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

• Exponential Growth

• Exponential Decay

• Linear

• None

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

• Exponential Growth

• Exponential Decay

• Linear

• None

This is an example of....

• an exponential growth

• an exponential decay

• an increasing linear function

• none of the above

What function is present? 

• Absolute Value

• Exponential Decay

• Linear Equation

• Exponential Growth

Answer explanation

The function present is Exponential Decay because it represents a decreasing quantity over time.

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

• Exponential Growth

• Exponential Decay

• Linear

• None

Is the following function and example of decay or growth?

f(x)=2(0.85)^x

• Exponential Decay

• Exponential Growth