Unit 4: Exponential Functions Exam Review

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

Which graph best represents

 $y=2^x-4$  

• 
• 
• 
• 

Tags

CCSS.HSF-IF.C.7E

Is the following equation an exponential growth or decay?

 $f\left(x\right)=\frac{1}{2}\left(3\right)^x$  

• Exponential Growth

• Exponential Decay

Tags

CCSS.HSF-IF.C.8B

Is the following equation an exponential growth or decay?

 $f\left(x\right)=2\left(\frac{1}{2}\right)^x$  

• Exponential Growth

• Exponential Decay

The value of a car is $15,000 and depreciates at a rate of 8% per year. What is the exponential equation?

• y=8(15,000)^x
• y=15,000(1.08)^x
• y=15,000(0.92)^x
• y=15,000(0.08)^x

Tags

CCSS.HSF.LE.A.2

What is the Domain of this exponential function?

• y=1

• x=0

• All Real Numbers

• x>0

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

What is the Range of this function?

• y> 0

• x> 0

• All Real Numbers

• y= 1

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

Evaluate
g(x) = 3(2)^x  ;  g(3) = ___

• 216
• 24
• 18
• 28

Tags

CCSS.HSF-IF.C.8B

You have 30,016 grams of radioactive kind of rubidium. How much will be left after 54 minutes if its half-life is 18 minutes?

• 15,008 grams.

• 7,504 grams

• 3,752 grams.

• 1,876 grams.

Tags

CCSS.HSF.LE.A.4

The number of decks of popular trading cards is a function f of the number of days d since the shipment arrived.

Calculate the average rate of change from day 5 to day 15.

•  $\frac{1283-528}{15\ -\ 5}=75.5$ 

•  $\frac{528-1283}{15\ -\ 5}=\ -75.5$ 

•  $\frac{15-5}{1283-528}=0.013$ 

•  $\frac{15-5}{528-1283}=-0.013$ 

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6