Harper Qz BI 6.1 Exp Growth/Decay and 6.2 Natural base e

• 1.5

• x

• 25

• 0.5

• 185%

• 0%

• 85%

• 15%

Identify which of the following given functions is/are shows an exponential growth function. Select all that apply.

Identify which of the following functions is/are exponential decay function. Select all that apply.

• 25 dollars

• 47 dollars

• 75 dollars

• 200 dollars

• 260 dollars

• 253 dollars

• 252 dollars

• 250 dollars

In an exponential function, what does the a value represent?

• Rate of growth or decay

• Slope

• Initial value

• Exponent

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

• 0.08

• 0.92

• 1.08

• 8

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

• y = 15(35)^x

• y = 15(0.35)^x

• y = 35(1.15)^x

• y = 15(1.35)^x

There is a culture of bacteria that begins with 5000 cells and dies by 30% each year. Write an exponential model to represent the situation.

• y = 5000(0.70)^x

• y = 30(5000)^x

• y = 5000(1.30)^x

• y = 5000x^x