Module 9 Review

A factory is increasing its output by 20% each year. The initial output was 200 units. Which of the following functions accurately describes the output in 5 years?

A population of 950 fish decreases exponentially at an annual rate of 25%. Which equation below BEST represents the population in x years?

• y=950+0.25x

Consider the growth of a bacteria culture observed over a week. The table provided details the number of bacteria present each day. What type of data represents the number of bacteria as a function of time?

• A. linear

• B. exponential

• 25% increase per day

• 75% increase per day

• 25% decrease per day

• 75% decrease per day

• This function indicates exponential growth.

• The initial population of the fish is 45.

• The annual growth rate is 20%.

• The population of the fish decreases each year.

• g(x) moves up 4 units

• g(x) moves down 4 units

• g(x) moves right 4 units

• g(x) reflects and moves left 4 units

• g(x) shifts horizontally 3 units to the left

• g(x) shifts horizontally 3 units to the right

• g(x) stretches vertically and moves up 3 units

• g(x) reflects over the y axis and moves down 3 units

• A. There is a vertical stretch of 3.

• B. The graph moves to the left 4.

• C. The graph moves to the right 4.

• D. The graph moves up 5.

• A. -0.321

• B. 0.874

• C. 1.003

• D. -2.806

• A. 40

• B. 20

• C. 10

• D. 5