5.1 Growth/Decay

What is the initial value of the situation represented by f(x)=0.05(2)^x?

• 0.05

• 2

• 0.1

• 1

Is the following function an example of decay or growth?

f(x) = 2(1.25)^x

• Exponential Growth

• Exponential Decay

What does this graph represent?

• Exponential Decay

• Exponential Growth

If the decay rate is 20%, which of the following represent the decay factor?

• 0.2

• 0.8

• 1.2

• 1.8

If the growth rate is 80%, what is the growth factor?

• 0.2

• 0.8

• 1.2

• 1.8

A population of fish starts at 8,000 and decreases by 6% per year. What is the population of fish after 10 years?

• 14327
• 4309
• 839
• 7680

Which is the correct equation? "A culture has 1250 bacteria and the sample is growing at a rate 0f 4.5% each day. How much basteria will there be in the sample after t days?"

• monthly

• daily

• weekly

• quarterly

• 1 year

• 2 years

• 4 years

• 5 years

• 5.5%

• 12%

• 55%

• 10%