Exponential Functions Readiness Quiz

Identify whether the function fx=2.5x is:

• Exponential growth

• Exponential decay

• Neither

• Cannot be determined

For the function fx=0.8x, the base indicates:

• Exponential growth

• Exponential decay

• Linear growth

• None of the above

fx=5.7⋅0.2x represents:

• Growth because b>1

• Decay because 0

• Neither growth nor decay

• Cannot be determined

fx=8⋅2.1x is classified as:

• Growth because b>1

• Decay because b<1

• Neither growth nor decay

• Cannot be determined

The function fx=3.4⋅7x is valid when x=:

• 3

• 7

• 4

• Cannot be determined

In fx=5.2⋅0.8x, the value of x for the input 5.2⋅0.8 is:

• 1

• 2

• 3

• 4

fx=6⋅1.3x is the function where x=:

• 3

• 4

• 5

• 6

Which of the following correctly represents fx=9x for x=3?

• 9⋅3⋅3

• 9⋅9⋅9

• 3⋅3⋅3

• None of the above

For fx=0.5⋅2x, the function is:

• Increasing

• Decreasing

• Constant

• Cannot be determined

The function fx=3⋅4.5x is:

• Increasing and concave up

• Increasing and concave down

• Decreasing and concave up

• Decreasing and concave down