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MATH 0930 Beginning Algebra Part 1 K.Rigdon Name_________________________ Practice Test for Exam 4 – Sections 2.4-2.6 & 2.8 Due (optional) on Exam Day – Tuesday, 10/21/2014 This practice test will give you a good idea of the type and number of problems you will see on the actual test. Working through this practice test will, therefore, provide you with a good idea of how well you know the material you will be tested over. This time the actual test will probably have a couple of questions less than you see here You have the opportunity to earn 3 extra credit points toward your test grade if you show all work possible for all the problems and, of course, get all the answers correct (partial points can be earned as well; answers are included on the back for you to check your work). If you would like to earn these extra points, you will need to turn in this paper, with all work attached (done on separate lined paper), on the day of the Exam. In addition to the questions over Section 2.4-2.6 & 2.8 material, you will have 4 questions like the Cumulative Review Questions you have been having in your homework assignments or on Cumulative Review Worksheets, so be certain to go over them (but, you don’t have to rework them to turn in with this). Specifically, these homework problems were: Problems 1), 2), 3), & 4): Page 126; #105-108 all Page 137; #91, 94-96 all Page 170; #66-68 all Solve for x. 5) 7) 4 + 2x = 8 -2(x + 3) + 4x = 8 6) 8) 9) 2 1 x2 14 7 10) 2x – 3 + x = -9 -4 (x – 1) – 5 (2 – x) = -6 x3 2 5 11) 13) 0.4x – 0.6x – 5 = 1 2x 3 9x 3x 3 10x 12) 14) x – 4x = 20 – 5x 15) -7 (-x + 3) – 2x = 5 (x – 4) – 2 16) 17) 2 x 3 6x 2 3 5 4 7 x x 9 3 6 18) 0.6x – 1 = 0.5x + 2 6 3x 5x 1 3x 2 Solve the following equations for the given variable. 19) Solve P = 2(L + W) 20) Solve V r h 21) 22) Solve Solve 3x – 2y = 12 for y, in the form y = mx + b. y – 4 = 2(x + 3) for y, in the form y = mx + b . 1 3 2 for W. for h. Solve the inequality, then graph the solution on a real number line & express solution in interval notation: 23) 25) -4x + 7 < -9 8x – 6 < 3 (x – 1) + 5x 24) 26) -2x – 4 >2 (x – 8) 2 (4x – 1) < 3x + 3 (x – 2) Practice Test Answer Key 1, 2, 3), & 4) Check answers in book 5) x=2 6) x = -2 7) x=7 8) x=0 9) x = -13 10) x = -13 11) x = -30 12) x = 10 13) x = (all real numbers) 14) x = -5 15) x= 16) x = 32 (or - 1 12 ) 17) x=0 18) x = 30 19) W 20) h 3Vr 2 21) 22) 23) y 32 x 6 y 2 x 10 x>4 [4, ) 24) x<3 (, 3) 25) x= ( , ) 26) x < -2 0 (the empty set – no solution) P 2L 2 or W P 2 L ( , 2]