Unit 5A Exponential Key Features Quiz Review

The value of some cell phones changes exponentially after initial release. Here are graphs showing the depreciation of two phones 1, 2, and 3 years after they were released.

What does the point (2, 360) of Phone A represent in this situation?

• Phone A is worth $2 after 360 years

• Phone A is worth $360 after 2 years

• Phone A has an initial amount of $360

• Phone A will be completely depreciated in value after 2 years.

Tags

CCSS.HSF.LE.B.5

The value of some cell phones changes exponentially after initial release. Here are graphs showing the depreciation of two phones 1, 2, and 3 years after they were released.

What is an appropriate domain for both functions?

Tags

CCSS.HSF-IF.C.7E

The value of some cell phones changes exponentially after initial release. Here are graphs showing the depreciation of two phones 1, 2, and 3 years after they were released.

Complete the phrase:  Each year, as x, increases, the value of f(x) ______________. 

• Stays the same

• Decreases

• Increases

• None of these

Tags

CCSS.HSF.LE.B.5

The value of some cell phones changes exponentially after initial release. Here are graphs showing the depreciation of two phones 1, 2, and 3 years after they were released.

Which phone is more expensive to buy when it is first released? How do you know?

• Phone A because its initial cost is $1,000

• Phone B because its initial cost is $840

• They both cost the same in the beginning, $0

• Not enough information on the graph to know.

The function, f, gives the dollar value of a bond t years after the bond was purchased.  The graph of f is shown.

What is f(0)?  What does it mean in this situation?

• f(0) = 1500, the last bond value shown on the graph

• f(0) = 1000, how many years since purchased

• f(0) = 0, the initial purchase price of the bond

• f(0) = 1000, the initial value of the bond

Tags

CCSS.HSF.LE.B.5

Given the following graph, find the AROC from [-6, -3].

• 2

• -2

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6

True or False: Exponential Functions have a constant rate of change.

• True

• False

Tags

CCSS.HSF-IF.C.8B

Intervals are composed of.......

• x-values only

• y-values only

• both x and y values

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

Find the AROC over the interval [0, 4]

• 15

• 4

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6