Exponential Functions Graphs Key Features

In an exponential function, 'b' represents (a)   .

• SLOPE

• RATE OF CHANGE

• Y-INTERCEPT

• COMMON RATIO

Identify the y-intercept (initial value) in the function f(x)=13(.27)^x

• (.27)^x
• .27
• 13
• 3.51

What is the y-intercept of the function?

• 2

• 3

• 1

• -2

Which of the following is an increasing exponential function whose y-intercept is 50?

• y = 50(.05)^x

• y = 50x - 4

• y = (2)^x + 50

• y = 50(1.4)^x

Which best describes the function?

• Decreasing, b-value > 1

• Decreasing, b-value between 0 and 1

• Increasing, b-value between 0 and 1

• Increasing, b-value > 1

Which best describes the function?

• Decreasing, b-value > 1.

• Decreasing, b-value between 0 and 1.

• Increasing, b-value between 0 and 1.

• Increasing, b-value > 1.

Check all that apply.

• The y-intercept is (0, 1/2)

• The y-intercept is (0, 2)

• The function is decreasing.

• The function is increasing.

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

• Exponential Growth

• Linear

• Exponential Decay

• None of the Above

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

• Growth

• Decay

• Linear

• None

Which graph is representative of the equation?

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