Exponential Functions Answers

What is the growth factor of the following example? Assume time is measured in the units given.A forest shrinks 80% per century.

Give the starting value a, the growth factor b, and the growth rate r if Q = abt = a(1 + r)t. Write r as a percent.

Every year, a lake becomes more polluted, and 2% fewer organisms can live in it. If in 2010 there are one million organisms, determine the number of organisms in the lake 5 years later. Let t = 0 represent the year 2010.

In 2006, the cost of a train ticket from Boston to New York was $73. Assume that the price rises by 10% per year. Determine the cost of the same ticket 10 years from 2006. Let t = 0 represent 2006.

Find a formula for f(t), the size of a population that begins in year t=0 with 2200 members and decreases at a 3.2% annual rate. a. c. b. d. Please select the best answer from the choices provided

Use the formula to calculate your salary after 6 years. Round your answer to the nearest dollar.

Give the starting value a, the growth factor b, and the growth rate r if Q = abt = a(1 + r)t Write r as a percent.

What is the growth factor of the following example? Assume time is measured in the units given.A diamond mine is depleted by 1% per day.

What is the growth factor of the following example? Assume time is measured in the units given.A city grows by 28% per decade.

Use the formula to calculate your salary after 4 years. Round your answer to the nearest dollar.