Exponential Functions 7

Which value most closely represents the initial value of the graph shown?

• 5000 years

• 28 grams

• 28 years

• 5 grams

What is being measured according to the time in the graph shown?

• Years

• Radioactive Radium

What is the measure of the x-axis?

• time in years

• time in seconds

• time in minutes

• Radium in grams

Approximately, how much radium remains after 2500 years?

• 15 g

• 28 g

• 90 g

• 9.5 g

What does the initial value also represent on the graph of an exponential function?

• y-intercept

• x-intercept

• asymptote

• rate

Which has a y-intercept that goes through the origin?

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• 
• 
• 

Which has a y-intercept greater than zero?

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• 
• 
• 

What type of function is shown in the graph?

• Linear

• Quadratic

• Exponential

Which function is best represented by the graph?

Which statement is true according to the functions shown?

• f(x) is exponential & g(x) is quadratic

• f(x) is quadratic & g(x) is exponential

• f(x) & g(x) are exponential

• f(x) is quadratic & g(x) is linear