Exponential Growth and Decay Application

What is a, the initial amount, for the function: f(x) = 300(1.16)^x?

• 300

• 1.16

• .16

• x

What does the a in y=a(1+r)^x  represent?

• Time

• Rate

• Slope

• Initial Amount

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

• Exponential Growth

• Linear

• Exponential Decay

• None of the Abovee

What is the decay rate in the following model?

A=1200(.85)⁶

• 1200

• .15

• .85

• 6

What is the decay factor in the following model?
A=1200(.85)⁶

• 1200

• -.15

• .85

• A

Is this exponential growth or decay?

• Growth

• Decay

What is r, the growth rate, for the function: f(x) = 300(1.16)^x?

• 300

• 1.16

• .16

• x

Is y = 5(1.04)^x growth or decay?

• Growth

• Decay

Is y = 4(.20)^x growth or decay?

• Growth

• Decay

The original value of a painting is $1400, and the value increases by 9% each year. Write an exponential growth function to model this situation.

• y=1400(1.09)^x

• y=1.09(1400)^x

• y=1400(.91)^x

• y=1.09^x