Brief Calculus : An Applied Approach, 9th Edition Test Bank

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Chapter 1: Functions, Graphs, and LimitsLarson, Calculus: An Applied Approach (+Brief), 9ePage 11.Plot the points(–4, 2), (3, –3), (–5, –2), (4, 0), (3, –4)in the Cartesian plane.A)B)C)

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Larson, Calculus: An Applied Approach, 9ePage 2D)E)

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Larson, Calculus: An Applied Approach, 9ePage 3Ans:C2.Find the distance between the points(3, 4)and(7, 7). Round your answer to thenearest hundredth.A)25.00B)2.65C)5.00D)14.87E)4.58Ans:C3.Find the midpoint of the line segment joining the points(5,1)and(7, 7). Round youranswer to the nearest hundredth.A)(12, 28)B)(6, 4)C)(–1, –3)D)(3, 7)E)none of these choicesAns:B

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Larson, Calculus: An Applied Approach, 9ePage 44.Find the length of each side of the right triangle from the following figure.A)a=15, b=8, c=17B)a=8, b=15, c=17C)a=17, b=–8, c=15D)a=15, b=8, c=–17E)a=15, b=15, c=17Ans:A5.Findxsuch that the distance between the points(5, 2)and( ,8)xis 10.A)x=13 orx=–13B)x=–3 orx=3C)x=13 orx=–3D)x=–11 orx=11E)x=15 orx=–15Ans:C

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Larson, Calculus: An Applied Approach, 9ePage 56.Assume that the number (in millions) of basic cable television subscribers in the UnitedStates from 1996 through 2005 is given in the following table. Use a graphing utility tograph a scatter plot of the given data. Describe any trends that appear within the lastfour years.Year1996199719981999200020012002200320042Subscribers62.363.664.765.566.366.766.566.065.76A)The number of subscribers appears to be increasing.B)The number of subscribers appears to be decreasing.C)

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Larson, Calculus: An Applied Approach, 9ePage 6The number of subscribers appears to be linearlydecreasing.D)The number of subscribers appears to be decreasing.E)

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Larson, Calculus: An Applied Approach, 9ePage 7The number of subscribers appears to be linearlyincreasing.Ans:B

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Larson, Calculus: An Applied Approach, 9ePage 87.Assume that the number (in millions) of cellular telephone subscribers in the UnitedStates from 1996 through 2005 is given in the following table. Use a graphing utility tograph a line plot of the given data. Describe any trends that appear within the last fouryears.Year1996199719981999200020012002200320042005Subscribers200.5195.1192.9185.3146.6125.6102.576.765.957.3A)The number of subscribers appears to be decreasing.B)The number of subscribers appears to be increasing.C)

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Larson, Calculus: An Applied Approach, 9ePage 9The number of subscribers appears to be constant.D)The number of subscribers appears to be decreasing.E)

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Larson, Calculus: An Applied Approach, 9ePage 10The number of subscribers appears to be increasing linearly.Ans:A

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Larson, Calculus: An Applied Approach, 9ePage 118.Assume that the median sales prices of existing one family homes sold (in thousands ofdollars) in the United States from 1990 through 2005 are as given in the followingfigure. Use the following figure to estimate the percent increase in the value of existingone-family homes from 1997 to 1998.A)0.021%B)0.058%C)2.06%D)55.5%E)5.8%Ans:E9.Use the Midpoint Formula repeatedly to find the three points that divide the segmentjoining()1,1xyand()2,2xyinto four equal parts.A)1212121212123333,,,,,224444xxyyxxyyxxyy++++++      B)1212121212123333,,,,,442244xxyyxxyyxxyy++++++      C)12121212121233333,,,,,224444xxyyxxyyxxyy++++++      121212121212333,,,,,224444xxyyxxyyxxyy++++++      D)121212121212344444,,,,,224444xxyyxxyyxxyy++++++      E)121212121212,,,,,424224xxyyxxyyxxyy++++++      Ans:B

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Larson, Calculus: An Applied Approach, 9ePage 1210.The red figure is translated to a new position in the plane to form the blue figure. Findthe vertices of the transformed figure from the following graph.(In case your exam isprinted in black and white - the red figure has one vertex at (0,0)).A)(–2, 0), (–3, 2), (1, 0)B)(–2, 0), (–3, 2), (0,1)C)(–2, 0), (–3,1), (0,1)D)(–2, –3), (–3, 2), (0, 0)E)(–2, 0), (–3, 0), (0,1)Ans:B