APU MATH 110 Unit 4 Test (2014)

MATH110 Unit 04 TestPart 1 of 25 – 4.0/ 4.0 PointsQuestion 1 of 25 4.0/ 4.0 PointsRewrite the given equation in slope-intercept form:- 3x + y = 5A.y = – 3x + 5B.y = – 3x – 5C.y = 3x – 5D.y = 3x + 5E.None of these.Part 2 of 25 – 4.0/ 4.0 PointsQuestion 2 of 25 4.0/ 4.0 PointsRewrite the given equation in slope-intercept form:10x – 5y = 50A.y = 10 x – 50B.y = – 2x + 10C.y = 2x – 10D.None of these.E.y = 10x + 50Part 3 of 25 – 4.0/ 4.0 PointsQuestion 3 of 25 4.0/ 4.0 PointsChoose the slope and y-intercept of the equation:y = 7x + 4A.The slope is 7 and the y-intercept is (4, 0)B.The slope is 4 and the y-intercept is (7, 0)C.The slope is 4 and the y-intercept is (0, 7)D.The slope is 7 and the y-intercept is (0, 4)E.None of these.Part 4 of 25 – 4.0/ 4.0 PointsQuestion 4 of 25 4.0/ 4.0 PointsDetermine the slope and the y-intercept for the linear equation:x + y – 6 = 0A.The slope is 1 and the y-intercept is (0, 6)B.None of these.C.The slope is – 1 and the y-intercept is (0, 6)D.The slope is – 1 and the y-intercept is (0, – 6)E.The slope is 1 and the y-intercept is (0, – 6)Part 5 of 25 – 4.0/ 4.0 PointsQuestion 5 of 25 4.0/ 4.0 PointsDetermine the slope and the y-intercept for the linear equation:y = 4xA.The slope is 0 and the y-intercept is (0, – 4)B.The slope is 4 and the y-intercept is (0, 0)C.None of theseD.The slope is – 4 and the y-intercept is (0, 0)E.The slope is 0 and the y-intercept is (0, 4)Part 6 of 25 – 4.0/ 4.0 PointsQuestion 6 of 25 4.0/ 4.0 Points(U4-Q22.gif)A.Choice AB.Choice BC.Choice CD.Choice DPart 7 of 25 – 4.0/ 4.0 PointsQuestion 7 of 25 4.0/ 4.0 PointsDetermine the slope of a line perpendicular to a line whose slope is -3/7.A.The slope of a perpendicular line is 7/3.B.The slope of a perpendicular line is 3/7.C.The slope of a perpendicular line is – 7/3.D.None of these.E.The slope of a perpendicular line is – 3/7.Part 8 of 25 – 4.0/ 4.0 PointsQuestion 8 of 25 4.0/ 4.0 PointsDetermine whether the given linear equations are parallel, perpendicular, or neither.y = -9x +11A.ParallelB.NeitherC.PerpendicularD.Not enough information to determinePart 9 of 25 – 4.0/ 4.0 PointsQuestion 9 of 25 4.0/ 4.0 PointsDetermine whether the given linear equations are parallel, perpendicular, or neither.8x – 4y = 286x – 3y = – 2A.PerpendicularB.NeitherC.Not enough information to determineD.ParallelPart 10 of 25 – 4.0/ 4.0 PointsQuestion 10 of 25 4.0/ 4.0 PointsWrite the equation of the line with a slope of 5 and a y-intercept of (0, 6) in slope-intercept form.A.y = 6x – 5B.y = 5x – 6C.None of these.D.y = 6x + 5E.y = 5x + 6Part 11 of 25 – 4.0/ 4.0 PointsQuestion 11 of 25 4.0/ 4.0 PointsWrite the equation of the line with a slope of 0 and passing through the point (6, 7).A.x = 7B.y = 0C.x = 6D.y = 7E.None of these.Part 12 of 25 – 4.0/ 4.0 PointsQuestion 12 of 25 4.0/ 4.0 PointsWrite the equation of the line with an undefined slope and containing the point (2, 3).A.y = 3B.y = 0C.x = 3D.x = 2E.None of these.Part 13 of 25 – 4.0/ 4.0 PointsQuestion 13 of 25 4.0/ 4.0 PointsWrite the equation of the line with a slope of 7 and passing through the point (0, 0).A.x = 0B.y = 7xC.None of these.D.y = 7E.y = 0Part 14 of 25 – 4.0/ 4.0 PointsQuestion 14 of 25 4.0/ 4.0 PointsWrite the equation of the line with slope = 2 and containing the point (8, 7).A.y = 2x + 9B.y – 7 = x – 8C.y = 2x – 9D.y – 7 = mx – 8E.None of thesePart 15 of 25 – 4.0/ 4.0 PointsQuestion 15 of 25 4.0/ 4.0 PointsFind the equation of a line passing through the point (2, 8) and parallel to the line y = 5.A.x = 8B.None of these.C.y = 2D.y = 8E.x = 2Part 16 of 25 – 4.0/ 4.0 PointsQuestion 16 of 25 4.0/ 4.0 PointsFind the equation of a line passing through the point (6, 8) and perpendicular to the line y = 2.A.y = 8B.y = 6C.x = 6D.x = 8E.None of these.Part 17 of 25 – 4.0/ 4.0 PointsQuestion 17 of 25 4.0/ 4.0 PointsChoose the equation of the line passing through ( 3, – 3) and parallel to 7x + y = 4.A.y = 7x – 3B.y = – 7x + 4C.None of these.D.y = 7x + 4E.y = – 7x + 18Part 18 of 25 – 4.0/ 4.0 PointsQuestion 18 of 25 4.0/ 4.0 Points(U4-Q97.gif)A.Choice AB.Choice BC.Choice CD.Choice DPart 19 of 25 – 4.0/ 4.0 PointsQuestion 19 of 25 4.0/ 4.0 Points(U4-Q99.gif)A.Choice AB.Choice BC.Choice CD.Choice DPart 20 of 25 – 4.0/ 4.0 PointsQuestion 20 of 25 4.0/ 4.0 Points(U4-Q108.gif)A.Choice AB.Choice BC.Choice CD.Choice DPart 21 of 25 – 4.0/ 4.0 PointsQuestion 21 of 25 4.0/ 4.0 PointsA faucet is used to add water to a large bottle that already contained some water. After it has been filling for 5 seconds, the gauge on the bottleindicates that it contains 22 ounces of water. After it has been filling for 13 seconds, the gauge indicates the bottle contains 54 ounces of water. Let ybe the amount of water in the bottle x seconds after the faucet was turned on. Write a linear equation that models the amount of water in the bottle interms of x.A.y = 2x + 5B.y = 5x + 2C.y = 4x + 4D.W = 4x + 2E.None of these.Part 22 of 25 – 4.0/ 4.0 PointsQuestion 22 of 25 4.0/ 4.0 PointsA vendor has learned that, by pricing caramel apples at $1.75, sales will reach 57 caramel apples per day. Raising the price to $2.75 will cause thesales to fall to 17 caramel apples per day. Let y be the number of caramel apples the vendor sells at x dollars each. Write a linear equation thatmodels the number of caramel apples sold per day when the price is x dollars each.4.21.6A.y = 40x – 13B.y = – 40x – 127C.y = – 40x + 100D.y = – 40x + 127E.None of these.Part 23 of 25 – 4.0/ 4.0 PointsQuestion 23 of 25 4.0/ 4.0 PointsAn investment was worth $2044 in 1995. By 2000 it had grown to $2624. Let y be the value of the investment in year x, where x = 0 represents1995. Assuming that the value of the investment increases in a linear fashion, write an equation that models the value of the investment in year x.A.y = – 116x + 2044B.y = – 116x + 2624C.y = 116x + 2624D.y = 116x + 2044E.None of thesePart 24 of 25 – 4.0/ 4.0 PointsQuestion 24 of 25 4.0/ 4.0 PointsWhen making a telephone call using a calling card, a call lasting 3 minutes costs $0.65. A call lasting 12 minutescosts $1.55. Let y be the cost of making a call lasting x minutes using a calling card. Write a linear equation that models thecost of making a call lasting x minutes.A.C = 0.1x – 10.45B.C = 10x – 29.35C.C = – 0.1x + 0.95D.C = 0.1x + 0.35E.None of these.Part 25 of 25 – 4.0/ 4.0 PointsQuestion 25 of 25 4.0/ 4.0 PointsThe cost of the average college mathematics textbook has been rising steadily in a linear fashion since 1990 when it cost $46. By 1994 the cost hadrisen to $70. Predict the average cost of a college mathematics textbook in 2017.A.$289B.$438C.$208D.$116E.None of these