Identify Percent of Growth or Decay

Identify the percent increase or percent decrease.

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

• ^.80

• ^1.08

• .92

• 8

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

Which of the following could be represented by A=200(1.1)^t

• I started with $200 and lost 1% per week

• I started with $200 and lost 10% per week

• I started with $200 and gained 1% per week

• I started with $200 and gained 10% per week

What is the percent growth or decay of the following function?

What is the percent growth or decay of the following function?

For the function: f(x) = 200 (0.95) ^x , what is the precent change in the decay rate of 0.95?

• 200 %

• 95 %

• 5 %

• 0.95 %

Is this exponential growth or decay?

• Growth

• Decay

A used car was purchased for $8,400. The car depreciates at a rate of 5% each month. The starting value is ​ (a)   and there is ​ 5% ​ (b)   which means the scale factor is ​ (c)   .

• $8,400

• decay

• 0.95

• growth

• 0.05