Question 1

Evaluate the function.  ; find  .

Accepted Answer

A)   
B)   
C)

Question 2

Using the graph below find the percentage rate of change from  to  .

Accepted Answer

A)  4026.0% 
B)  51.8% 
C)  311.0% 
D)  150.0% 
E)  107.4%

Question 3

is a function that represents the cost in dollars to make w widgets. Find w such that  .

Accepted Answer

The answer of  is a function that represents the...

Question 4

is a function that represents the cost in dollars to make w wheels. Find w such that  .

Accepted Answer

A)  1250 
B)  790350 
C)  2257

Question 5

Every relationship between an input and an output is a function.

Accepted Answer

A) True 
 B)False

Question 6

Using the following table of a function that models exponential growth determine the one-year growth factor (rounded to the nearest hundredth).

Accepted Answer

A)  1.32 
B)  1.75 
C)  0.87 
D)  1.15 
E)  0.76

Question 7

Decide whether the lines are parallel perpendicular or neither.  and

Accepted Answer

A)  parallel 
B)  perpendicular 
C)  neither

Question 8

The graph of the equation  is which of the following?

Accepted Answer

A)   
B)   
C)

Question 9

Determine whether the equation 
  is linear. If it is linear put it into slope-intercept form.

Accepted Answer

The answer of Determine whether the equation 
  is...

Question 10

Use the graph to find the x- intercept and y- intercept.

Accepted Answer

The answer of Use the graph to find the x-...

Question 11

The function  is a model for the number of cars allowed in a parking lot during a special event where t is measured in hours. What is the carrying capacity for the function f ?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  400 
E)  Not enough information

Question 12

Determine whether the graph represents a function.

Accepted Answer

A)  Yes 
B)  No

Question 13

When you graph a set of points on a coordinate plane the origin must always be in the center of the coordinate plane.

Accepted Answer

A) True 
 B)False

Question 14

Decide whether you would graph the equation  by using the slope and y- intercept the x- and y -intercepts or by building a table of points to plot.

Accepted Answer

A)  slope and y- intercept 
B)  x- and y -intercepts 
C)  building a table of points

Question 15

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?

Accepted Answer

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 16

Using the following table of a function that models exponential decay determine which one of the following models the amount of radioactive substance as a function of time?

Accepted Answer

A)   
B)   
C)   
D)   
E)

Question 17

Determine whether the following relation is a function.
For the year 2009 the input is the temperature at noon in degrees Fahrenheit and the output is the day of the year (1 to 365).

Accepted Answer

A)  Yes 
B)  No

Question 18

Use the graph to find the equation of the line. Put the answer in  form.

Accepted Answer

A)   
B)   
C)   
D)

Question 19

In 1990 a town's population was 21354. In 1998 the town's population increased to 29012. Assuming that the population increased exponentially the one-year growth factor is 1.039.

Accepted Answer

A) True 
 B)False

Question 20

Evaluate the function.  ; find  .

Accepted Answer

A)   
B)  3 
C)

Exam 3: Linear Equations With Two Variables

Evaluate the function. ; find .

Using the graph below find the percentage rate of change from to .

is a function that represents the cost in dollars to make w widgets. Find w such that .

is a function that represents the cost in dollars to make w wheels. Find w such that .

Every relationship between an input and an output is a function.

Using the following table of a function that models exponential growth determine the one-year growth factor (rounded to the nearest hundredth) .

Decide whether the lines are parallel perpendicular or neither. and

The graph of the equation is which of the following?

Determine whether the equation is linear. If it is linear put it into slope-intercept form.

Use the graph to find the x- intercept and y- intercept.

The function is a model for the number of cars allowed in a parking lot during a special event where t is measured in hours. What is the carrying capacity for the function f ?

Determine whether the graph represents a function.

When you graph a set of points on a coordinate plane the origin must always be in the center of the coordinate plane.

Decide whether you would graph the equation by using the slope and y- intercept the x- and y -intercepts or by building a table of points to plot.

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?

Using the following table of a function that models exponential decay determine which one of the following models the amount of radioactive substance as a function of time?

Determine whether the following relation is a function. For the year 2009 the input is the temperature at noon in degrees Fahrenheit and the output is the day of the year (1 to 365) .

Use the graph to find the equation of the line. Put the answer in form.

In 1990 a town's population was 21354. In 1998 the town's population increased to 29012. Assuming that the population increased exponentially the one-year growth factor is 1.039.

Evaluate the function. ; find .