Key Features Exponential Functions

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-IF.C.7E

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6

What is the transformation?

• Vertical Translation up 2 and Horizontal translation right 1

• Vertical Translation down 2 and Horizontal Translation left 1

• Horizontal Translation left 2 and Vertical Translation up 1

• Horizontal Translation right 2 and Vertical Translation down 1

Tags

CCSS.HSF.BF.B.3

Label the key features of the exponential function.

a

c

axis of symmetry

x-intercept

y-intercept

horizontal asymptote

Tags

CCSS.HSF-IF.C.7E

An exponential function is graphed. Click on the y-intercept.

Tags

CCSS.HSF-IF.C.7E

• 8

• y=0

• (0,8)

• 0.25

• (8,0)

• x=0

Tags

CCSS.HSF-IF.C.7E

This graph models ​ (a)   . For this function, b is ​ (b)  

• exponential growth

• exponential decay

• a rational function

• greater than 1

• less than 1

• equal to 1

Tags

CCSS.HSF-IF.C.8B

Which equation matches the graph?

• y = 2^x+3

• y = 2^x + 3

• y = 2^x

• y = 2^-x

Tags

CCSS.HSF.LE.A.2

This graph models ​ (a)   . For this function, b is ​ (b)  

• exponential growth

• exponential decay

• a rational function

• greater than 1

• less than 1

• equal to 1

Tags

CCSS.HSF-LE.A.1A