Exponential Functions 4.1 Practice

The function given is an example of growth or decay?

 $y=2^x$  

• Growth

• Decay

The function given is an example of growth or decay?

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

• Growth

• Decay

The function given is an example of growth or decay?

 $y=0.2\cdot\left(7\right)^x$  

• Growth

• Decay

Tags

CCSS.HSF.LE.A.1

CCSS.HSF.LE.B.5

The function given is an example of growth or decay?

 $y=\left(1-0.2\right)^x$  

• Growth

• Decay

The function given is an example of growth or decay?

 $y=100\cdot\left(1+.72\right)^x$  

• Growth

• Decay

Which is the exponential function that can be written from this recursive formula?
 $u_0=120$  

 $u_n=0.8u_{n-1}$  

•  $y=0.8\cdot120^x$  

•  $y=120\cdot0.8^x$  

•  $y=120\cdot\left(1-0.8\right)^x$  

•  $y=\left(1-0.8\right)\cdot120^x$  

Which is the exponential function that can be written from this recursive formula?
 $u_0=5$  

 $u_n=13\cdot u_{n-1}$  

•  $y=\left(5-13\right)^x$  

•  $y=\left(13-5\right)^x$  

•  $y=5\cdot13^x$  

•  $y=13\cdot5^x$  

Which is the exponential function that can be written from this recursive formula?
 $u_0=5000$  

 $u_n=\left(1+0.2\right)\cdot u_{n-1}$  

•  $y=5000^x$  

•  $y=1.2^x$  

•  $y=1.2\cdot5000^x$  

•  $y=5000\cdot1.2^x$  

Given the exponential function below, what is the zero term? 
 $y=2\cdot0.7^x$  

• 2

• 0.7

• x

Karen bought a car for $24,000. The value of the car depreciates by about 13% each year. Which function below can be used to find the VALUE of her car? 

•  $y=24000\cdot0.13^x$  

•  $y=24000\cdot87^x$  

•  $y=24000\cdot13^x$  

•  $y=24000\cdot0.87^x$