Exponential Functions Mixed Practice

Write an equation that models the following situation:
Samantha's hair was known to grow very rapidly. It began at a length of 6 in and grew at a rate of 14% a week.

• y=6(0.14)^x
• y=6(1+14)^x
• y=6(1.14)^x
• y=6(0.86)^x

Tags

CCSS.HSF.LE.A.2

What type of function is y = 7(5/4)^x?

• Exponential Growth
• Exponential Decay
• Linear
• None of the above

Tags

CCSS.HSF.LE.A.1

CCSS.HSF.LE.A.3

What type of function is f(x)=2(1/7)^x ?

• Exponential Growth
• Linear
• Exponential Decay
• None of the Abovee

Tags

CCSS.HSF-IF.C.8B

Which of the following functions shows an initial amount of $15 and an increase of 35% each year?

• y = 15(35)^x
• y = 15(1.35)^x
• y = 15(0.35)^x
• y = 35(1.15)^x

Tags

CCSS.HSF.LE.A.2

Which of the following is an increasing exponential function whose y-intercept is 50?

• y = 50(.05)^x
• y = 50x - 4
• y = (2)^x + 50
• y = 50(1.4)^x

Tags

CCSS.HSF.LE.A.2

Which variable represents time passed in the function y=ab^x?

• y

• a

• b

• x

Tags

CCSS.HSF.IF.A.1

CCSS.HSF.IF.A.2

Which of the situations below would represent an exponential function? (choose all that apply)

• A worker makes $8 an hour

• A workers pay doubles every 5 years

• A savings account earns 3% interest every month

• A savings account earns $0.50 interest every month

• 3 bacteria are added to the total population every day

Which of the tables below would represent an exponential function? (choose all that apply)

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• 
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• 

If  $f\left(x\right)=\frac{1}{3}\cdot6^x$  , find  $f\left(2\right)$  

•  $f\left(2\right)=36$  

•  $f\left(2\right)=42$  

•  $f\left(2\right)=4$  

•  $f\left(2\right)=12$  

If  $h\left(n\right)=10\cdot2^n$  , find  $h\left(-2\right)$  

•  $h\left(-2\right)=-40$  

•  $h\left(-2\right)=\frac{5}{2}$  

•  $h\left(-2\right)=10$  

•  $h\left(-2\right)=undefined$