Exponential Regression Exit Ticket

Alexis currently has 2 songs dowloaded on her ipod. She is going to add 5 songs per month to her ipod. Which type of function best represents the model for Alexis' total number of songs in her ipod each month?

• cubic function

• exponential function

• linear function

• quadratic function

Which situation best models an exponential function?

• A restaurant charges $10 per meal, plus 8.0% tax.

• Exponential DecayA bike company charges a flat fee of $7.50 plus $0.35 per mile.

• The number of cable users increased by 90% per year for the last 15 years.

• Water pressure starts at 15.8 pounds at sea level and increases 15.8 pounds per square inch for every 12 meters in depth.

A new savings account is opened with $400 and gains 3% every year. What is the exponential function?

• f(x)=400(1+3)^x

• f(x)=400(1-0.03)^x

• f(x)=400(1+0.03)^x

• f(x)=400(0.03)^x

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

Uber charges an initial fee of $2 plus $0.75 per mile. What type of function is this? 

• Linear 

• Exponential 

• Neither 

Is the table linear or exponential?

• Linear

• Exponential

Is the table linear or exponential?

• Linear

• Exponential

Which type of function best fits the data in the table below?

• Exponential decay

• Exponential growth

• linear model with positive slope

• linear model with negative slope

Using an exponential best-fit model, at approximately what y value will x = 8?

• 65,536

• 78,732

• 8748

• 26,244

What is the exponenital regression best-fit line for this data?

• y = 171.46(.99)^x

• y = .99(171.46)^x

• y = 175(1)^x

• y = 1(1.75)^x