Test Bank for A Graphical Approach to College Algebra, 6th Edition

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ExamName___________________________________MULTIPLE CHOICE.Choose the one alternative that best completes the statement or answers thequestion.For the set, list all elements that belong to the specified set.1); Integers1)_______A)14,B)14C)0,-9, 2D)14,-92); Whole numbers2)_______A)3B)3,-13C)3, 0D)3,-13, 03); Natural numbers3)_______A)0, 5B)0C)5D)-20, 04){7,,-16, 0}; Real numbersA)7, 0B)7C)7,-16, 0D)7,,-16, 04)_______5){10,,-11, 0, 0.33}; Rational numbersA)10, 0B)10,-11, 0, 0.33C), 0.33D)5)_______6){9,,-4, 0, 0.89}; Irrational numbersA), 0, 0.89B)C),-4D), 0.896)_______For the measured quantity, state the set of numbers that is most appropriate to describe it. Choose from the naturalnumbers, integers, and rational numbers.7)Number of students in various high schoolsA)Rational numbersB)IntegersC)Natural numbers7)_______8)Hat sizesA)Natural numbersB)IntegersC)Rational numbers8)_______9)Temperatures given in a weather forecast for AlaskaA)Rational numbersB)IntegersC)Natural numbers9)_______

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10)High temperatures during heat waves in CaliforniaA)IntegersB)Rational numbersC)Natural numbers10)______11)Net annual incomes of local manufacturers, in dollarsA)Natural numbersB)IntegersC)Rational numbers11)______12)The lengths of randomly cut pieces of string (measured using a ruler)A)IntegersB)Rational numbersC)Natural numbers12)______13)The populations of armies of termites living in the walls of housesA)IntegersB)Natural numbersC)Rational numbers13)______14)The lengths of randomly cut pieces of string (measured to the nearest inch)A)Natural numbersB)Rational numbersC)Integers14)______15)The average speeds of race cars for one lap at Wilmot SpeedwayA)IntegersB)Natural numbersC)Rational numbers15)______16)The number of cars sold in an average month at Bob's Auto SalesA)Rational numbersB)Natural numbersC)Integers16)______Graph the set of numbers on a number line.17){1, 3, 5, 7}17)______A)B)C)D)

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18){-7,-5,-3,-1}18)______A)B)C)D)19)19)______A)B)C)D)20){-1.75, 1.25, 3.5,-2.75}20)______A)B)C)D)

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21)21)______A)B)C)D)22)22)______A)B)C)D)Locate the point on a rectangular coordinate system. Identify the quadrant , if any, in which the point lies.23)(17, 18)A)IB)IIC)IVD)III23)______24)(19,-8)A)IB)IIIC)IID)IV24)______25)(-11, 15)

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A)IIB)IIIC)IVD)None25)______26)(-16,-18)A)IVB)IIIC)ID)II26)______27)27)______A)IIB)IIIC)IVD)None28)28)______A)IVB)IIC)ID)None29)(0, 0)A)IB)IVC)IID)None29)______Name the possible quadrants in which the point (x, y) can lie if the condition is true.30)yx < 0A)II or IIIB)II or IVC)III or IVD)I or II30)______31)0 < xyA)II or IVB)I or IIIC)III or IVD)II or III31)______32)< 032)______A)II or IVB)II or IIIC)III or IVD)I or IIGive the values of Xmin, Xmax, Ymin, and Ymax for the screen, given the values for Xscl and Yscl.33)Xscl = 1, Yscl = 133)______A)[5,-5] by [5,-5]B)[-10, 10] by [-10, 10]

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C)[10,-10] by [10,-10]D)[-5, 5] by [-5, 5]34)Xscl = 2, Yscl; = 234)______A)[5,-5] by [5,-5]B)[10,-10] by [10,-10]C)[-5, 5] by [-5, 5]D)[-10, 10] by [-10, 10]35)Xscl = 1, Yscl = 135)______A)[-15, 5] by [-15, 5]B)[5,-15] by [5,-15]C)[-5, 15] by [-5, 15]D)[15,-5] by [15,-5]36)Xscl = 10, Yscl = 1036)______A)[-30, 30] by [-40, 40]B)[-3, 3] by [-4, 4]C)[-4, 4] by [-3, 3]D)[-40, 40] by [-30, 30]37)Xscl = 5, Yscl = 537)______

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A)[-10, 60] by [-10, 80]B)[-10, 80] by [-10, 60]C)[-2, 12] by [-2, 16]D)[-2, 16] by [-2, 12]38)Xscl = 4, Yscl = 238)______A)[-10, 10] by [-20, 20]B)[-10, 10] by [-10, 10]C)[-5, 5] by [-5, 5]D)[-20, 20] by [-10, 10]39)Xscl = 15, Yscl = 1039)______A)[-20, 20] by [-10, 50]B)[-2, 2] by [-5, 1]C)[-50, 10] by [-30, 30]D)[-30, 30] by [-50, 10]40)Xscl = 2, Yscl = .240)______A)[-1, 1] by [-10, 10]B)[-10, 10] by [-1, 1]C)[-5, 5] by [-5, 5]D)[-10, 10] by [-10, 10]41)

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Xscl = 7, Yscl = 841)______A)[-2, 3] by [-4, 5]B)[-28, 35] by [-16, 24]C)[-4, 5] by [-2, 3]D)[-16, 24] by [-28, 35]42)Xscl = .3, Yscl = .542)______A)[-4, 4] by [-5, 5]B)[-5, 5] by [-4, 4]C)[-1.5, 1.5] by [-2, 2]D)[-15, 15] by [-20, 20]Find a decimal approximation of the root or power. Round the answer to the nearest thousandth.43)A)2.241B)2.233C)5.000D)2.23643)______44)A)8.485B)8.490C)72.000D)8.48244)______45)A)31.350B)31.358C)31.353D)983.00045)______46)A)84.048B)7064.000C)84.053D)84.04546)______47)A)11.000B)11.720C)11.692D)11.70547)______48)A)3.072B)-29C)24,389D)84148)______49)

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A)-27.875B)5.28C)-5.28D)27.87549)______50)101/550)______A)2B)50.000C)-50.000D)1.58551)A)6.663B)5.963C)8.263D)4.96351)______Approximate the expression to the nearest thousandth.52)A)12.649B)11.662C)12.686D)9.19152)______53)A)-95.409B)-97.42C)97.421D)95.40953)______54)54)______A)-0.128B)-0.174C)-0.117D)-0.10955)6.3()-2(4.1) + 6A)34.388B)46.388C)40.388D)-32.61255)______Find the length of the unknown side of the right triangle. In each case, a and b represent the lengths of the legs and crepresents the length of the hypotenuse.56)a = 40, b = 75; find cA)5B)7225C)4025D)8556)______57)a = 40, c = 85; find bA)5B)75C)8825D)722557)______58)a =, b =; find cA)B)5C)25D)397

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58)______59)b = 9, c = 15; find aA)11B)12C)14D)1559)______Find the distance between P and Q and the coordinates of the midpoint of the segment joining P and Q.60)60)______A)4;B)8;C)4;D)8;61)61)______A)2;B)2;C)6;D)6;62)

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62)______A);B);C);D);63)63)______A);B)5i;C);D);64)P(5, 4), Q(8, 7)A)6;B)3;C)6;D)3;64)______65)P(-9, 9), Q(1,-7)A)2;B)6;C)6;D)2;65)______Suppose that P is the endpoint of a segment PQ and M is the midpoint of PQ. Find the coordinates of endpoint Q.66)P(3, 2), M66)______

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A)QB)QC)QD)Q(9, 5)67)P(-3,-6), MA)QB)QC)QD)Q(7, 2)67)______Solve the problem.68)The graph shows the Total Gross Revenue (in millions of dollars) of Top 100 Internet Companies in the United Statesbetween 2000 and 2004. Use the midpoint formula to estimate the revenue for 2002.Total Gross Revenue of Top 100 Internet Companiesa = 5000 million dollars; b = 15,400 million dollars68)______A)10,400 million dollarsB)42,000 million dollarsC)10,200 million dollarsD)17,500 million dollars69)The graph shows an idealized linear relationship for the average monthly payments (in dollars) to retirees from 2000through 2004. Use the midpoint formula to estimate the payment for 2002.Average Monthly Payments to Retirees

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a = $452; b = $48069)______A)$480B)$500C)$14D)$46670)The table lists how financial aid income cutoffs (in dollars) for a family of four have changed over time. Use themidpoint formula to approximate the financial aid cutoff for 1985.70)______A)$21,250B)$58,750C)$36,875D)$18,12571)An isosceles triangle has at least two sides of equal length. Determine whether the triangle with verticesandis isosceles.71)______A)YesB)No72)An isosceles triangle has at least two sides of equal length. Determine whether the triangle with verticesandis isosceles.72)______A)YesB)NoProvide an appropriate response.73)Isa rational or irrational number?A)IrrationalB)Rational73)______C)Both rational and irrationalD)Neither74)Are both 9 and-2 natural numbers, integers, or irrational numbers?A)Natural numbersB)Integers74)______

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C)Irrational numbersD)None of the above75)Are both 7 andnatural numbers, integers, or irrational numbers?A)IntegersB)Irrational numbers75)______C)Natural numbersD)None of the above76)Are bothandnatural numbers, integers, or irrational numbers?A)Natural numbersB)Irrational numbers76)______C)IntegersD)None of the above77)In what quadrant of the xy-plane does P(8, 1) lie?A)IIIB)IIC)ID)IV77)______78)In what quadrant of the xy-plane does P(8, 2) lie?A)IIIB)IC)IVD)II78)______79)In what quadrant of the coordinate system would you plot P(-9, 5) ?A)IIIB)IVC)IID)I79)______Sketch the graph of f.80)f(x) =-2x + 380)______A)

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