Question 1

Graph the function.
-f(x) =

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 2

Graph the function using a calculator and point-by-point plotting. Indicate increasing and decreasing intervals:
-f(x) = 3 ln x

Accepted Answer

A)  Increasing: (0, $\infty$)   
B)  Decreasing: (0, $\infty$)   
C)  Decreasing: (0, $\infty$)   
D)  Increasing: (-3, $\infty$)   
A)  Increasing: (0, $\infty$)   
B)  Decreasing: (0, $\infty$)   
C)  Decreasing: (0, $\infty$)   
D)  Increasing: (-3, $\infty$)

Question 3

Graph the function:
-

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 4

Use a calculator to evaluate the expression. Round the result to five decimal places:
-log 51.237

Accepted Answer

A)  51.237 
B)  3.93646 
C)  1.70958 
D)  Undefined 
A)  51.237 
B)  3.93646 
C)  1.70958 
D)  Undefined

Question 5

Convert to an exponential equation:
-

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 6

Graph the function using a calculator and point-by-point plotting. Indicate increasing and decreasing intervals:
-f(x) = 4 - ln x

Accepted Answer

A)  Decreasing: (0,$\infty$)   
B)  Increasing ( 4, $\infty$)   
C)  Increasing (0, $\infty$)   
D)  Decreasing: (0, $\infty$)   
A)  Decreasing: (0,$\infty$)   
B)  Increasing ( 4, $\infty$)   
C)  Increasing (0, $\infty$)   
D)  Decreasing: (0, $\infty$)

Question 7

Assume it costs 25 cents to mail a letter weighing one ounce or less, and then 20 cents for each additional ounce or fraction of an ounce. Let L(x) be the cost of mailing a letter weighing x ounces. Graph y = L(x). Use the interval (0, 4].

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 8

Graph by converting to exponential form first:
-

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 9

The function F described by F(x) = 2.75x + 71.48 can be used to estimate the height, in centimeters, of a woman whose humerus (the bone from the elbow to the shoulder) is x cm long. Estimate the height of a woman whose humerus is   long. Round your answer to the nearest four decimal places.

Accepted Answer

A)  13.5775 cm 
B)  43.3000 cm 
C)  156.5375 cm 
D)  105.1600 cm 
A)  13.5775 cm 
B)  43.3000 cm 
C)  156.5375 cm 
D)  105.1600 cm

Question 10

Determine whether the function is linear, constant, or neither:
-

Accepted Answer

A)  Linear 
B)  Constant 
C)  Neither 
A)  Linear 
B)  Constant 
C)  Neither

Question 11

For the polynomial function find the following: (i) Degree of the polynomial; (ii) All x intercepts; (iii) The y intercept.
-

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 12

Hi-Tech UnWater begins a cable TV advertising campaign in Miami to market a new water. The percentage of the target market that buys water is estimated by the function   t represents the number of days of the campaign. After how long will 90% of the target market have bought the water?

Accepted Answer

A)  90 days 
B)  120 days 
C)  115 days 
D)  3 days 
A)  90 days 
B)  120 days 
C)  115 days 
D)  3 days

Question 13

Write an equation for the graph in the form y = a + k, where a is either 1 or -1 and h and k are integers:
-

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 14

The U. S. Census Bureau compiles data on population. The population (in thousands) of a southern city can be approximated by   where x corresponds to the years after 1950. In what calendar year was the population about 804,200?

Accepted Answer

A)  1965 
B)  2000 
C)  1955 
D)  1960 
A)  1965 
B)  2000 
C)  1955 
D)  1960

Question 15

In the table below, the amount of the U.S. minimum wage is listed for selected years.
     
Find an exponential regression model of the form y = a ∙   , where y represents the U.S. minimum wage x years after 1960. Round a and b to four decimal places. According to this model, what will the minimum wage be in 2005? In 2010?

Accepted Answer

The answer of In the table below, the amount of...

Question 16

Graph the function:
-

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 17

Convert to a logarithmic equation.
-

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 18

Write an equation for the lowest-degree polynomial function with the graph and intercepts shown in the figure:
-

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Graph the function. -f(x) =

Graph the function using a calculator and point-by-point plotting. Indicate increasing and decreasing intervals: -f(x) = 3 ln x

Graph the function: -

Use a calculator to evaluate the expression. Round the result to five decimal places: -log 51.237

Convert to an exponential equation: -

Graph the function using a calculator and point-by-point plotting. Indicate increasing and decreasing intervals: -f(x) = 4 - ln x

Assume it costs 25 cents to mail a letter weighing one ounce or less, and then 20 cents for each additional ounce or fraction of an ounce. Let L(x) be the cost of mailing a letter weighing x ounces. Graph y = L(x). Use the interval (0, 4].

Graph by converting to exponential form first: -

The function F described by F(x) = 2.75x + 71.48 can be used to estimate the height, in centimeters, of a woman whose humerus (the bone from the elbow to the shoulder) is x cm long. Estimate the height of a woman whose humerus is long. Round your answer to the nearest four decimal places.

Determine whether the function is linear, constant, or neither: -

For the polynomial function find the following: (i) Degree of the polynomial; (ii) All x intercepts; (iii) The y intercept. -

Hi-Tech UnWater begins a cable TV advertising campaign in Miami to market a new water. The percentage of the target market that buys water is estimated by the function t represents the number of days of the campaign. After how long will 90% of the target market have bought the water?

Write an equation for the graph in the form y = a + k, where a is either 1 or -1 and h and k are integers: -

The U. S. Census Bureau compiles data on population. The population (in thousands) of a southern city can be approximated by where x corresponds to the years after 1950. In what calendar year was the population about 804,200?

Graph the function: -

Convert to a logarithmic equation. -

Write an equation for the lowest-degree polynomial function with the graph and intercepts shown in the figure: -

Linear Equations and Graphs

Mathematics of Finance

Systems of Linear Equations; Matrices

Linear Inequalities and Linear Programming

Linear Programming: The Simplex Method

Logic, Sets, and Counting

Probability

Markov Chains

Data Description and Probability Distributions

Games and Decisions

Appendix A: Basic Algebra Review

Appendix B: Special Topics

Filters

Exam 2: Functions and Graphs

Graph the function. -f(x) =

Graph the function using a calculator and point-by-point plotting. Indicate increasing and decreasing intervals: -f(x) = 3 ln x

Graph the function: -

Use a calculator to evaluate the expression. Round the result to five decimal places: -log 51.237

Convert to an exponential equation: -

Graph the function using a calculator and point-by-point plotting. Indicate increasing and decreasing intervals: -f(x) = 4 - ln x

Assume it costs 25 cents to mail a letter weighing one ounce or less, and then 20 cents for each additional ounce or fraction of an ounce. Let L(x) be the cost of mailing a letter weighing x ounces. Graph y = L(x). Use the interval (0, 4].

Graph by converting to exponential form first: -

The function F described by F(x) = 2.75x + 71.48 can be used to estimate the height, in centimeters, of a woman whose humerus (the bone from the elbow to the shoulder) is x cm long. Estimate the height of a woman whose humerus is long. Round your answer to the nearest four decimal places.

Determine whether the function is linear, constant, or neither: -

For the polynomial function find the following: (i) Degree of the polynomial; (ii) All x intercepts; (iii) The y intercept. -

Hi-Tech UnWater begins a cable TV advertising campaign in Miami to market a new water. The percentage of the target market that buys water is estimated by the function t represents the number of days of the campaign. After how long will 90% of the target market have bought the water?

Write an equation for the graph in the form y = a + k, where a is either 1 or -1 and h and k are integers: -

The U. S. Census Bureau compiles data on population. The population (in thousands) of a southern city can be approximated by where x corresponds to the years after 1950. In what calendar year was the population about 804,200?

Graph the function: -

Convert to a logarithmic equation. -

Write an equation for the lowest-degree polynomial function with the graph and intercepts shown in the figure: -

Linear Equations and Graphs

Mathematics of Finance

Systems of Linear Equations; Matrices

Linear Inequalities and Linear Programming

Linear Programming: The Simplex Method

Logic, Sets, and Counting

Probability

Markov Chains

Data Description and Probability Distributions

Games and Decisions

Appendix A: Basic Algebra Review

Appendix B: Special Topics

Filters