Identifying, Evaluating and Graphing Exponential Functions

Using the parent function y=3^x what would the graph of y=3^x+1 look like?

• Horizontal Shift to the right 1 unit
• Horizontal shift to the left one unit
• Vertical shift one unit up
• Vertical shift one unit down

Which equation models the graph?

• f(x) = 10 - 0.5x

• f(x) = 10(0.5)^x

• f(x) = 0.5(10)^x

• f(x) = 0.5 - 10x

Describe the transformations for the following function:

f(x) = 3^x - 4

• 4 units up

• 4 units to the left

• 4 units to the right

• 4 units down

What is the y-intercept of the function?

• (0,2)

• (0,3)

• (0,1)

• (0,-2)

What type of function is y = 7(1.25)^x?

• Exponential Growth

• Exponential Decay

• Linear

• None of the above

What type of function is represented?

• Exponential Growth

• Exponential Decay

• Linear

• Neither

Pick the equation that models exponential growth.

• y=2(0.5)^x

• y = 0.5(2)^x

• y = 2 + 0.5x

• y = 0.5 + 2x

Which function represents the table of values?

• f(x) = 4x + 1

• f(x) = (1/4)^x

• f(x) = 1 + 4^x

• f(x) = 4^x

Determine if the function represents a linear, exponential or function. If it is an exponential function, state whether it is growth or decay.

y = -2(1.5)^x

• Linear

• Exponential Growth

• Exponential Decay

• Neither

Determine if the function represents a linear, exponential or function. If it is an exponential function, state whether it is growth or decay.

y = -1(0.5)^x

• Linear

• Exponential Growth

• Exponential Decay

• Neither