Key Features of Exponential Functions

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

• BASE

• RATE OF CHANGE
• INITIAL AMOUNT
• GROWTH OR DECAY FACTOR

Which of the following is an exponential function?

• y = x²

• f(x) = 3x³

• f(x) = 3^x

Does the graph represent an exponential growth or an exponential decay function?

• Exponential Growth
• Exponential Decay

Is the graph exponential growth or decay?

• Exponential growth
• Exponential decay

What is the y-intercept of the function?

• 2
• 3
• 1
• -2

Identify the y-intercept (initial value) of the function f(x)=2(4)^x.

• 2
• 4
• (2)^x
• 8

What is the y-intercept of f(x)=2(3)^x ?

• (0, 2)

• (0, 1)

• (0, 0)

• (2, 0)

• (1, 0)

Look at the graph and answer each question.

Is the graph increasing or decreasing?

What is the y-intercept?

What is the asymptote?

• Increasing

  y-intercept: (0, 5)

  asymptote: y = 0

• Decreasing

  y-intercept: (0, 5)

  asymptote: y = 0

• Increasing

  y-intercept: (0, 5)

  asymptote: y = 5

• Decreasing

  y-intercept: (5, 0)

  asymptote: x = 0

What is the domain of the function?

What is the range of this graph?

• y = 6
• (0, -4)
• y > -6
• y < -6