169_186_CC_A_RSPC1_C12_662330.indd



Chapter 2/3 Test Study GuideWrite the letter for the correct answer in the blank at the right of each question.1. Translate the following sentence into an equation. The product of five and a number y is two less than the quotient of four and y.A 5 + y = 4y – 2 C 5y = 2 – 4yB 5y = 4y – 2 D 5 + y = 2 – 4y2. Translate the following equation into a verbal sentence. x(7 – 5y) = x2F x times seven minus five times y equals x divided by two.G The product of x and seven minus five times y equals the quotient of x and two.H x times the difference of seven and the product of five and y equals the quotient of x and two.J x times the sum of seven and five times y equals x divided by two.3. Solve x – 12 = 5.A –17 B –7 C 17 D 74. Solve – 47 k = –28.A 49 B –49 C 16 D –165. Solve 2 + 7y = 44.F 6 4yG 35 H 49 J 66. A number is divided by four. The result is added to five. This result is multiplied by three to give 27. What is the number?A 16 B 1 C 21 12 D 3 127. What ratio forms a proportion with 836?F 14 G 627 H 730J 278. Solve the proportion 18 = 72h .A 4 B 28 C 56 D 169. Solve 9a + 28 = 4a + 3.F –30 G –20 H 6 15J –510. Solve 3x + 4(x – 8) – x = 35 (10x + 15).A 0 B all numbers C no solution D 4111. Solve 4(3r – 2) = –3(r + 7).F – 1315 G –1 415 H 1 1415 J –1312. Solve 3b = 6v – 3b, for v.A 6b – 6 B b C b – 6 D 013. Find the percent of change. original: 45 new: 54F 33 13 %G 25% H 16 23 % J 20%14. Find the discounted price. radio: $45.00 discount: 30%A $15.00 B $31.50 C $36.00 D $42.0015. Nature Drinks wants to combine orange juice they sell for $0.09 per ounce with guava juice they sell for $0.14 per ounce to create an orange-guava drink. How many ounces of orange juice should they use to create a 16-ounce drink that would sell for $1.74?F 10 oz G 6 oz H 16 oz J 0 oz16. Teri begins walking east at 2 miles per hour at 1:00 P.M. If Cindy leaves from the same point 30 minutes later walking east at 3 miles per hour, when will she catch Teri?A 2:30 P.M. B 1:30 P.M. C 2:00 P.M. D 3:00 P.M.17. The formula for the volume of a cone is V = 13 πr2h, where V represents the volume, r represents the radius of the base, and h represents the height. What is the height of a cone with a volume of 110 cubic centimeters and a base with a radius of 5 centimeters?F 21 cm G 0.47 cm H 4.2 cm J 41.49 cm18. What is the slope of the line through (2, –8) and (4, 1)?A – 29B – 67C – 76D 9219. Which equation is not a linear equation?F 2x + 5y = 3 G y = – 10 H 5 = 3xy J y = x7 + 420. What is the slope of the line through (–4, –6) and (9, –6)?A – 125B – 512C 0 D undefined21. In 2005, MusicMart sold 14,550 CDs. In 2010, they sold 12,000 CDs. What is the rate of change (slope) in the number of CDs sold?F –2550 per yr G –510 per yr H –425 per yr J –2400 per yr22. Which is the graph of y = – 12x ?36563302032025476202032014715702094438671520320AB C D23. The amount a spring stretches varies directly as the weight of the object attached to it. If an 8-ounce weight stretches a spring 10 centimeters, how much weightwill stretch it 15 centimeters? A 16 oz B 6 oz C 10 oz D 12 ozFor Questions 24 and 25, use the following information.The number of students seated in each row of an auditorium form an arithmetic sequence, as shown in the table.Row1234Number of students47101324. How many students are seated in the 15th row?F 46 G 58 H 59 J 19525. Which formula can be used to find the number of students seated in any given row?A an= 4n B an= 4n – 1 C an = n + 3 D an= 3n + 1x01234y–5291623 26. Find the function that represents the relationship.F y = x – 5 H y = 7xG y = 7x – 5 J y = 7x + 735997763293527. Which line shown at the right is the graph of x + 2y = 6?A r C tB n D v28. Which equation has a graph that is a horizontal line?F x – 7 = 0 H x = yG 2y + 3 = 4 J x + y = 029. What is the standard form of y + 2 = 12 (x – 4)?A x + 2y = 0 B x – 2y = 8 C 2x – y = 10 D 4x – 2y = 030. Determine which sequence is an arithmetic sequence.F –16, –12, –8, –4, . . . H 1, 4, 2, 5, 3, . . .G 4, 8, 16, 32, . . . J 1, 1, 2, 3, 5, . . .31. Which equation describes the nth term of the arithmetic sequence –12, –14, –16, –18, . . .?A an= –2n – 10 C an = 10n – 2B an= –12 – 2n D an= –2n + 103683000698532. Write an equation in function notation for the relation.F f(x) = –2x H f(x) = -x + 2G f(x) = x – 2 J f(x) = 2x + 2 33. Determine which sequence is not an arithmetic sequence.F –7, 0, 7, 14, . . . H 10, 6, 2, –2, . . .G 0, 12 , 1, 32 , . . . J 2, 4, 8, 16, . . .34. Which equation describes the nth term of the arithmetic sequence 7, 10, 13, 16, . . .?A an= 3n + 4 B an = 7 + 3n C an = – 4n + 3 D an = 3n – 4For questions 35-37, use the following sequence: -4, 1, 6, 11,…35. Which is an equation for the nth term of the sequence?36. What is the 20th term in the sequence? 37. What term is equal to 86? ................
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