Question 1

A patient was administered Iodine-123 before a thyroid imaging scan. The table illustrates the data gathered over a 12-hour time period. 
  
 Using a graphing calculator, find an appropriate curve that models the amount of Iodine-123 (in micrograms) as a function of the time (in hours) (round to the nearest thousandth).

Accepted Answer

The answer of A patient was administered Iodine-123 before a...

Question 2

Which one of the following functions is described by the graph? 
A) 
B) 
C) 
D) 
E)

Accepted Answer

The answer of Which one of the following functions is...

Question 3

Which one of the following functions is described by the graph? 
A) 
B) 
C) 
D) 
E)

Accepted Answer

The answer of Which one of the following functions is...

Question 4

After college graduation, Sheena was offered two different jobs. The first offer included a salary of $38,200 plus a guaranteed raise of $1900 per year. The second offer included a salary of $31,400 plus a guaranteed raise of 3% per year. 
 What is the average rate of change for the function defined by the first job offer for year 3 to year 5?

Accepted Answer

The answer of After college graduation, Sheena was offered two...

Question 5

A lake is initially stocked with 500 turtles and the turtle population is sampled at 8-week intervals to estimate the population size. The table illustrates the data gathered from the sampling. 
  Using a graphing calculator, find an appropriate curve that models the turtle population as a function of the number of weeks (round to the nearest thousandth).

Accepted Answer

The answer of A lake is initially stocked with 500...

Question 6

The revenue of a company is being monitored each month. The initial revenue is $1.3 million. The table illustrates the data gathered over a 6-month time period. 
  
 Using a graphing calculator, find an appropriate curve that models the revenue as a function of the number of months (round to the nearest thousandth).

Accepted Answer

The answer of The revenue of a company is being...

Question 7

After college graduation, Sheena was offered two different jobs. The first offer included a salary of $37,600 plus a guaranteed raise of $1500 per year. The second offer included a salary of $33,700 plus a guaranteed raise of 7% per year. 
 What is the average rate of change for the function defined by the second job offer for year 1 to year 5? (Rounded to the nearest hundredths)

Accepted Answer

The answer of After college graduation, Sheena was offered two...

Question 8

After college graduation, Sheena was offered two different jobs. The first offer included a salary of $41,200 plus a guaranteed raise of $1100 per year. The second offer included a salary of $32,900 plus a guaranteed raise of 3% per year. 
 Use the second job offer to find a function g that models the salary t years from now.

Accepted Answer

The answer of After college graduation, Sheena was offered two...

Question 9

The number of people infected with the H1N1 virus as a function of time (in months) was originally modeled by  . Based on new data, this model was updated to  . What conclusions can be made based on the revised model?
A) Both models are equivalent.
B) The growth factor increased since more people were infected with the virus.
C) The number of people initially infected with the virus was increased.
D) The time (in months) that people were infected increased.
E) The percentage rate of change of the number of people infected increased.

Accepted Answer

The answer of The number of people infected with the...

Question 10

After college graduation, Sheena was offered two different jobs. The first offer included a salary of $40,300 plus a guaranteed raise of $1100 per year. The second offer included a salary of $29,000 plus a guaranteed raise of 3% per year. 
 Use the first job offer to find a function f that models the salary t years from now.

Accepted Answer

The answer of After college graduation, Sheena was offered two...

Quiz 3: Exponential Functions and Models

Which one of the following functions is described by the graph?

Which one of the following functions is described by the graph?

The number of people infected with the H1N1 virus as a function of time (in months) was originally modeled by . Based on new data, this model was updated to . What conclusions can be made based on the revised model?