Exponential Decay

Does this graph represent exponential decay?

• Yes

• No

Does this graph represent exponential decay?

• Yes

• No

Does this graph represent exponential decay?

• Yes

• No

Does this equation show exponential growth or decay? REMEMBER: (d > 1 = growth) (d < 1 = decay)

y = 5000 (.44)^4

• Exponential Growth

• Exponential Decay

Does this equation show exponential growth or decay? REMEMBER: (d > 1 = growth) (d < 1 = decay)

y = 200 (1.33)^2

• Exponential Growth

• Exponential Decay

Does this equation show exponential growth or decay? REMEMBER: (d > 1 = growth) (d < 1 = decay)

y = 2643(2.34)^19

• Exponential Growth

• Exponential Decay

Does this equation show exponential growth or decay? REMEMBER: (d > 1 = growth) (d < 1 = decay)

y = 4500 (.33)^6

• Exponential Growth

• Exponential Decay

A population of eagles starts at 5,000 and decreases by 5% per year.

What is the r (rate) expressed in decimal form.

• 5,000

• 5%

• .5

• .05

A population of eagles starts at 5,000 and decreases by 5% per year.

What is the a (initial amount)

• 5,000

• 5%

• .5

• .05

A population of eagles starts at 5,000 and decreases by 5% per year.

How many eagles will be left in 4 years? Round to the nearest whole number.

• 3,125

• 4,073

• 313

• 3,000