Exponential Functions Exam

Which represents exponential decay?

• A

• B

• C

• D

Tags

CCSS.HSF-IF.C.7E

Your 3 year investment of $20,000 received 5.2% interest compounded annually.  What is your total return?

• $23,285.05
• $3,285.05
• $2,385
• $32,285

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.SSE.A.1

CCSS.HSF.BF.A.1

CCSS.HSF.LE.A.1

CCSS.HSF.LE.A.2

Principal: $5000
Interest Rate: 3.75%
Time: 25 years
Compounded Monthly
State the future account balance.

• $12712.31
• $12,749.30
• $12,657.59
• $12550.84

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.SSE.B.4

CCSS.HSF.BF.A.1

CCSS.HSF.LE.A.1

CCSS.HSF.LE.A.2

A new savings account is opened with $600 and gains 4% every year. What is the exponential function?

• f(x)=600(.96)^x

• f(x)=600(1-0.04)^x

• f(x)=600(1.04)^x

• f(x)=600(0.04)^x

Tags

CCSS.HSF.LE.A.2

What does the graph represent?

• Exponential Decay

• Exponential Growth

• Neither

Tags

CCSS.HSF-IF.C.7E

What does this graph represent?

• Exponential Decay

• Exponential Growth

• Neither

Tags

CCSS.HSF-IF.C.7E

What is the initial value "a" in the following function:
 $y=6\left(2.4\right)^x$  

• 6

• 2.4

• y

• x

What is the common ratio "b" in the following function:
 $y=9\left(1.6\right)^x$  

• 1.6

• 9

• y

• x

Which does y= 2(.5)^x represent?

• Exponential Growth

• Exponential Decay

Tags

CCSS.HSF-IF.C.8B

Which does y=.5(2)^x represent?

• Exponential Growth

• Exponential Decay

Tags

CCSS.HSF-IF.C.8B