Exponential Function Growth and Decay Interpretation

Does the function represent a growth or decay function?

• Exponential GROWTH

• Exponential DECAY

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

• Exponential GROWTH

• Exponential DECAY

• Linear

• Not a function

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

• Exponential Growth

• Exponential Decay

• Linear

• None

Is this exponential growth or decay?

• Growth

• Decay

• Linear

• Not a function

(a)  

• F

• G

• H

• J

The expression 150(1.02)^y models the number of certain species of trees in a forest as a function of the number of years since a reforestation project began.

What does 1.02 represent in this expression?

• The number of trees decreases by 2% each year

• The number of trees increases by 2% each year

• There were initially 1.02 trees

• The reforestation project started 1.02 years ago

Which statement is the best interpretation of one of the values in this exponential function?

• The balance in the account increases at a rate of 2.5% each year.

• The initial balance of the account was $1,025.

• The balance in the account decreases at a rate of 102.5% each year.

• The balance in the account increases at a rate of 25% each year.

• F

• G

• H

• J

Pick the correct answer.

• F

• G

• H

• J

What type of function is f(x)=2(1/7)^x ?

• Exponential Growth

• Linear

• Exponential Decay

• None of the Abovee