Test Bank for Elementary and Intermediate Algebra Functions and Authentic Applications, 3rd Edition

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ExamName___________________________________MULTIPLE CHOICE.Choose the one alternative that best completes the statement or answers thequestion.Respond to the question by using complete sentences.1)Let n be the number (in thousands) of fans who attend a baseball game.What does n =20 mean in this situation?1)_______A)There are20,000 seats at the baseball field.B)There are20 seats at the baseball field.C)20 fans attended the baseball game.D)20,000 fans attended the baseball game.2)Let p be the percentage of college students who participate in athletics.The value of p is about34 for 2017.Whatdoes p =34 mean in this situation?2)_______A)In 2017, college students participated in athletics.B)In 2017, about 0. 34% of college students participated in athletics.C)In 2017, about34 college students participated in athletics.D)In 2017, about34% of college students participated in athletics.3)Let p be a company's annual profit (in millions of dollars).What does p =-10 mean in this situation?3)_______A)The company made $ 10 million.B)The company made $ 10.C)The company lost $ 10.D)The company lost $ 10 million.4)Let t be the number of years since 2017.What does t =8 mean in this situation?A)The statement t =8 represents the year2009.4)_______B)The statement t =8 represents the year2025.C)The statement t =-8 represents the year2025.D)The statement t =-8 represents the year2009.5)Let t be the number of years since 2017.What does t =-3 mean in this situation?A)The statement t =3 represents the year2020.5)_______B)The statement t =-3 represents the year2014.C)The statement t =-3 represents the year2020.D)The statement t =3 represents the year2014.SHORT ANSWER.Write the word or phrase that best completes each statement or answers thequestion.Choose a variable name for the given quantity.Give two numbers that the variable can represent and two numbersthat it cannot represent.6)Thetotal time (inminutes) that a personwaits in line at the bank6)_____________7)Theprice (indollars) of aDVD7)_____________

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Solve the problem.8)A rectangle has an area of12 square feet.Let W be the width (in feet), L be the length (in feet), and A be the area (insquare feet).a.Sketch three possible rectangles of area12 square feet.b.Which of the symbols W, L, and A are variables?c.Which of the symbols W, L, and A are constants?8)_____________9)The perimeter of a rectangle is the sum of the lengths of all four sides.A rectangle has a perimeter of.LetW be the width, L be the length, and P be the perimeter, all units in yards.a.Sketch three possible rectangles of perimeter24 yards.b.Which of the symbols W, L, and P are variables?c.Which of the symbols W, L, and P are constants?9)_____________10)The length of a rectangle isthree times the width.Let W be the width, L be the length, and P be the perimeter, allunits in feet.a.Sketch three possible rectangles in which the length isthree times the width.b.Which of the symbols W, L, and P are variables?c.Which of the symbols W, L, and P are constants?10)____________11)The width of a rectangle is2 inches.Let W be the width (in inches), L be the length (in inches), and A be the area(in square inches).a.Sketch three possible rectangles of width2 inches.b.Which of the symbols W, L, and A are variables?c.Which of the symbols W, L, and A are constants?11)____________MULTIPLE CHOICE.Choose the one alternative that best completes the statement or answers thequestion.Graph the numbers on a number line.12)12)______A)B)C)D)

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13){-4.75,-2,0,2.25}13)______A)B)C)D)14)Counting numbers between 2 and 714)______A)B)C)D)15)Integers between-3 and 3, inclusive15)______A)B)C)D)

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16)Integers between-4 and 1, inclusive16)______A)B)C)D)17)Negative integers between-5 and 517)______A)B)C)D)18)Positive integers between-5 and 518)______A)B)C)D)Which of the numbers are the given type of number?

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19)17,,-15, 0,,-,8.8,Integers19)______A)17,-15, 0,B)17,-15, 0C)17, 0,D)17, 020)9,,-6, 0,,-,8.7,Counting numbers20)______A)9,B)9, 0,C)-6, 0,9D)9, 021)3,,-16, 0,,Real numbers21)______A)3,-16, 0,B)3,-16, 0,,C)3,-16, 0,D)3,,-16, 0,,22)6,,-20, 0,,,0.18Rational numbers22)______A)6,-20, 0,,,0.18B),C),,0.18D)6, 0,23)14,,-23, 0,,,0.15Irrational numbers23)______A),0.15B),,0.15C)D),Find the average.24)The number of visitors to a historical museum for various days are43,53,29,49,26,53, and27A)40B)35C)53D)4324)______25)The sales (in millions of dollars) of a technology company for various years are10.2,11,8,11, and7.8.25)______A)$ 10.2 millionB)$ 8 millionC)$ 9.6 millionD)$ 11 million26)The number of students that have applied to the professional art program in the years 2013, 2014, 2015, 2016, and2017 are51,56,42,52, and39, respectively.26)______A)NoneB)40C)48D)51

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Solve the problem.27)The number of listings on an online auction website (in millions) in the years 2013, 2014, 2015, 2016, 2017 are1.2,4.7,6.6,7.1, and7.8, respectively.Did the number of listings increase, decrease, stay approximately constant, ornone of these between 2013 and 2017, inclusive?27)______A)increaseB)constantC)decreaseD)none of these28)The number of listings on an online auction website (in millions) in the years 2013, 2014, 2015, 2016, 2017 are1.2,4.6,6.5,7.2, and7.5, respectively.Did the increases in the number of listings increase, decrease, stay approximatelyconstant, or none of these between 2013 and 2017, inclusive?28)______A)decreaseB)constantC)increaseD)none of thesePlot the given point in the rectangular coordinate system.29)( 6,2)29)______A)B)C)

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D)30)(-4,5)30)______A)B)

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C)D)31)( 6,-2)31)______A)

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B)C)D)32)(-1,-5)

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32)______A)B)C)D)

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33)(0,2)33)______A)B)C)

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D)34)(-6, 0)34)______A)B)

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C)D)Identify the coordinates of each point labeled in the figure.35)35)______A)A( 7,6); B(-3,1)B)A( 7,6); B( 1,-3)C)A( 6,30); B( 1,-3)D)A( 7,1); B ( 6,1)

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36)36)______A)C( 5,6); D(-4,3)B)C(-5,5); D(-4,3)C)C(-5,-4); D( 5,-4)D)C(-5,5); D( 3,-4)37)37)______A)E(-3,-7); F( 3,-7)B)E( 3,10); F(-7,-6)C)E(-3,3); F(-7,-6)D)E(-3,3); F(-6,-7)38)38)______A)G( 7,-5); H(-4,-2)B)G(-5,30); H(-4,-2)C)G( 7,-5); H(-2,-4)D)G( 7,-4); H(-5,-4)Identify the independent variable and the dependent variable.39)LetT be thetime ( in minutes)it takes to gradeNassignments.

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A)independent:T; dependent,NB)independent:N; dependent,T39)______40)Letr be therate ( in gallons per hour)at which water is added to a tank, and lett be the number ofhours ittakes tofill the tank.40)______A)independent:t; dependent,rB)independent:r; dependent,t41)Letn be thenumber of peopleat a water park when thetemperature isFdegrees Fahrenheit.A)independent:F; dependent,nB)independent:n; dependent,F41)______42)LetI bea person's annual income ( in dollars) , and letT be thestate taxes (in dollars)the person must pay.42)______A)independent:T; dependent,IB)independent:I; dependent,TDescribe what the given ordered pair represents.43)Let n be the average number of cars sold per week by a car dealer who works t hours per week.What does theordered pair ( 40,12) represent?43)______A)It will take12 car deals to sell40 cars per weekB)It will take40 car deals to sell12 cars per weekC)A car dealer who works12 hours per week will sell an average of40 cars per week.D)A car dealer who works40 hours per week will sell an average of12 cars per week.44)Let p be the percentage of Americans at age A who have made a charitable donation in the past year.What does theordered pair ( 23,67) represent?44)______A)0. 67% of Americans at age23 made a charitable donation last year.B)67% of Americans at age23 made a charitable donation last year.C)0. 23% of Americans at age67 made a charitable donation last year.D)23% of Americans at age67 made a charitable donation last year.45)Let abe the total amount of money spent on advertising (in millions of dollars) by a national retail company at t yearssince 2010.What does the ordered pair ( 8,13.7) represent?45)______A)$ 13.7 million was spent on advertising in 201 8.B)$ 13.7 million was spent on advertising in2002.C)Over the last8 years $ 13.7 million was spent on advertising.D)Since2002 $ 13.7 million has been spent on advertising.46)Let a be the total amount of money spent on advertising (in millions of dollars) by a national retail company at t yearssince 2010. What does the ordered pair (-5,3.5) represent?46)______A)Since2005 $ 3.5 million has been spent on advertising.B)$ 3.5 million was spent on advertising in 201 5.C)$ 3.5 million was spent on advertising in2005.D)Over the last5 years $ 3.5 million was spent on advertising.

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