The model describes the amount of bacteria in a Petri dish after t hours. Which one of the following written statements best describes this population?
A) The amount of bacteria decreases by 17% each hour.
B) The amount of bacteria increases by 117% each hour.
C) The amount of bacteria decreases by 117% each hour.
D) The amount of bacteria increases by 17% each hour.
E) The amount of bacteria increases by 1.17% each hour.

Question

The model  describes the amount of bacteria in a Petri dish after t hours. Which one of the following written statements best describes this population?
A) The amount of bacteria decreases by 17% each hour. 
B) The amount of bacteria increases by 117% each hour. 
C) The amount of bacteria decreases by 117% each hour. 
D) The amount of bacteria increases by 17% each hour. 
E) The amount of bacteria increases by 1.17% each hour.

Quizplus · Accepted Answer

The model indicates that the amount of bacteria is increasing over time, as indicated by the positive coefficient in front of the variable for t. The coefficient of 0.17 indicates that the population is increasing by 17% per hour. Therefore, the correct choice is D, "The amount of bacteria increases by 17% each hour."

The Model Describes the Amount of Bacteria in a Petri