Unit 4 Review

Front

What is the yearly growth factor for a population that doubles in 4 years?

Back

1.2

Front

Write the equation for a population that starts at 100 and grows at a yearly growth factor of 1.2.

Back

y = 100(1.2)^x

Front

What is the formula for exponential growth?

Back

y = a(b)^x, where 'a' is the initial amount, 'b' is the growth factor, and 'x' is time.

Front

If a population of bacteria doubles every 3 hours, what is the growth factor?

Back

2

Front

What does it mean for a population to grow exponentially?

Back

It means the population increases by a constant percentage over equal time intervals.

Front

If Samantha's hair grows at a rate of 14% per week, what is the growth factor in decimal form?

Back

1.14

Front

What is the approximate number of bacteria in a culture after 6.5 hours if it grows exponentially?

Back

Use the growth model to estimate based on the graph.

Front

Which of the following is an example of exponential growth? a) A car depreciating b) A population of bacteria doubling c) The price of gasoline increasing by $0.10 per month

Back

A population of bacteria doubling.

Front

What is NOT an exponential growth scenario?

Back

The price of gasoline increasing $0.10 per month.

Front

What does the term 'doubles' represent in the context of exponential growth?

Back

It indicates a growth factor of 2.