Exponential Key

What is the growth factor of the function?

• 2

• 3

• 1

• -2

Which equation best represents the graph above?

• f(x)=5(.5)^x

• f(x)=5(.25)^x

• f(x)=10(5)^x

• f(x)=10(.75)^x

Which of the following statements about the graph above is true?

• The range is the set of all real numbers less than 0.

• The domain is the set of all real numbers less than 0.

• The domain is the set of all real numbers greater than 0.

• The range is the set of all real numbers greater than 0.

Which of the following statements about the graph above is true?

• The domain is the set of all real numbers less than 0.

• The equation of the asymptote is x=0.

• The range is the set of all real numbers less than 0.

• The domain is the set of all real numbers.

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A shipping company started with 40 employees. The number of employees at the shipping company increases at a rate of 7.5% each year. Which function can be used to model the number of employees, f(x), at the shipping company after x years?

There were 417 cell phones sold at an electronics store in January. Since then, cell phone sales at this store have increased at a rate of 3.75% per month. At this rate of growth, which function can be used to determine the monthly cell phone sales x months after January?

Create the exponential function with the following attributes:

Asymptote: y = 0

Initial value: 3

Point on the graph: (2, 6)

Growth

A shipping company started with 40 employees. The number of employees in the shipping company increases at a rate of 7.5% each year. What function can be used to model the number of employees, f(x), in the shipping company after x years?

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