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Part 4 of 15 -4.0/ 4.0 PointsQuestion 6 of 254.0/ 4.0 PointsThe equation of a line is y = -2x + 6. What is the slope of a line parallel to it?A.m = 2B.m = -1/2C.m = - 2D.m = 6E.None of these.MATH110 Final Exam July 2013...4 of 1512/26/2013 12:38 AM
Part 5 of 15 -4.0/ 12.0 PointsQuestion 7 of 250.0/ 4.0 PointsWrite an equation for the line perpendicular to the line x = 9 and passing through the point (12, 2).A.y = 12B.None of these.C.y = 2D.x = 2E.x = 12Question 8 of 250.0/ 4.0 PointsWrite an equation for the line parallel to the line x = 3 and passing through the point (10, 7).A.y = 10B.y = 7C.x = 10D.x = 7E.None of these.Question 9 of 254.0/ 4.0 PointsWrite an equation of the line passing through (3, -4) and parallel to y = - 7x + 9.A.y = - 7x + 17B.y = - 7x - 17C.y = 7x - 17D.None of these.E.y = 7x + 17Part 6 of 15 -0.0/ 4.0 PointsQuestion 10 of 250.0/ 4.0 PointsWhen making a telephone call using a calling card, a call lasting 6 minutes costs $2.90. A call lasting 13minutes costs $5.70. Find a linear function that relates the cost, C, of a making a call to the length, x, of the call,treating length of the call as the independent variable.MATH110 Final Exam July 2013...5 of 1512/26/2013 12:38 AM
A.C = -.4x - 12.1B.C = -.4x + 5C.None of these.D.C = .4x + .5E.C = -.4x - 7.3Part 7 of 15 -4.0/ 4.0 PointsQuestion 11 of 254.0/ 4.0 PointsTrue or False: The ordered pair (6, -3) is a solution to this system of equationsx + y = - 9x - y = - 3TrueFalsePart 8 of 15 -8.0/ 12.0 PointsQuestion 12 of 254.0/ 4.0 Points