Exponential Rates

What is the starting value in the exponential equation y =3^x ?

• 3

• 0

• 1

What is the rate of decrease for the exponential equation y = 25(.35)^x ?

• 25

• 65%

• 35.%

• .35

What is the initial value for the exponential equation y = 25(.35)^x ?

• 25

• 65%

• 35%

• .35

What is the Decay FACTOR for the exponential equation y = 25(.35)^x ?

• .35

• 65%

• 35.%

• 25

A population of 1500 deer decreases by 1.5% per year. In 10 years there will be 1290 deer. Identify the decay FACTOR, the "b-value".

• 0.85

• 0.015

• 1.015

• 0.985

BONUS: A population of 1500 deer decreases by 1.5% per year. In 10 years there will be 1290 deer. How many deer will there be after 20 year?

• 1500

• 1290

• 0

• 1109

• 5

• 1

• .02

• 1.02

• Growth

• Decay

What value goes inside the parentheses for the Growth Factor if something doubles every hour?

• 2

• 4

What value do you use for the exponent if a bacteria triples every 10 hours and you want to know how many bacteria there are 70 hours later? (HINT: How many times will the bacteria triple in 70 hours?)

• 700

• 10

• 70

• 7