Interpret Exponential Functions

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

• SLOPE

• GROWTH FACTOR

• Y-INTERCEPT

• EXPONENT

Describe this function.

• Exponential Growth

• Exponential Decay

• Linear Positive

Describe the function.

• Exponential Growth

• Exponential Decay

• Linear

Which scenario best matches the expression 12(1.015)^t

• A population of elephants begins with 12 elephants in a wildlife refuge 1975. The elephants increase in number by 1.5% each yaer.
  

• A population of elephants begins with 12 elephants in a wildlife refuge 1975. The elephants decrease in number by 1.5% each yaer.

• 
• 
• 
• 

What is the equation of the graph shown, and what is the y-intercept?

• y = 1⁄3 (3)^x ; a = 1⁄3

• y = 1⁄3 (3)^x ; a = 3

• y = 3 (1/3)^x ; a = 1⁄3

• y = 3 (1/3)^x ; a = 3

Which has a horizontal asymptote?

• Exponential

• Logarithmic

• Both

The expression 12(1.015)^t models the population of elephants in a wildlife refuge after t years since 1975.
What does the value 12 represent?

• The predicted increase in number of elephants in the refuge each year.

• The predicted decrease in number of elephants in the refuge each year.

• The number of years it will take for the elephant population to stop increasing.

• The initial amount of elephants in the park.

Classify the model as Exponential GROWTH or DECAY.
A=1200(.85)⁶

• Growth

• Decay

Which equation represent this situation?

• y = 280(1.03)^t

• y = 280(0.97)^t

• y = 280(1.3)^t

• y = 1.03(280)^t