Exponential Decay and Growth Problems

If something decays at a rate of 2.5% per hour, what would "t" be over two days?

• 2

• 24

• 48

• .025

If something changed at a rate of 3% per week, what would "t" be over a time of one year?

• 1

• 7

• 12

• 52

If something changed at a rate of 5% every two minutes, what would "t" be for a time period of 35 minutes?

• 35

• 17.5

• 17

• 2

Given the function f(x) = 1.07^x, how do you know the exponential function shows growth or decay?

• Growth or decay is determined by the value of the base

• Growth or decay is determined by the value of the exponent

• Because exponential functions are always growth functions

• Because exponential functions are always decay functions

Given the function f(x) = 1.07^x, is this a growth or decay function?

• Growth

• Decay

Given the function f(x) = 0.92^x, is this a growth or decay function?

• Growth

• Decay

Given the function f(x) = 1.00005^x, is this a growth or decay function?

• Growth

• Decay

Given the function f(x) = 0.0000000435^x, is this a growth or decay function?

• Growth

• Decay

Given the function f(x) = 1.07^x, what was the rate of decay?

• .07%

• .7%

• 7%

• 70%

Given the function f(x) = 2(1.0045)²⁵ⁿ, what was the rate of decay?

• .045%

• .45%

• 4.5%

• .0045%