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Test Bank for Algebra and Trigonometry, 7th edition by Robert F. Blitzer
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Test Bank for Algebra and Trigonometry, 7th edition by Robert F. Blitzer
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ALGEBRA & TRIGONOMETRY
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SEVENTH EDITION
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Robert Blitzer
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Miami Dade College
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The author and publisher of this book have used their best efforts in preparing this book. These efforts include the
development, research, and testing of the theories and programs to determine their effectiveness. The author and
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publisher make no warranty of any kind, expressed or implied, with regard to these programs or the documentation
contained in this book. The author and publisher shall not be liable in any event for incidental or consequential
damages in connection with, or arising out of, the furnishing, performance, or use of these programs.
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Reproduced by Pearson from electronic files supplied by the author.
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Copyright © 2022, 2018, 2014 by Pearson Education, Inc. 221 River Street, Hoboken, NJ 07030. All rights reserved.
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All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any
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form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written
permission of the publisher. Printed in the United States of America.
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,Blitzer Algebra & Trigonometry 7e
Chapter P Test Item File
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
Evaluate the algebraic expression for the given value or values of the variable(s).
1) 7x + 8; x=3
A) 15 B) 13 C) 29 D) 42
Objective: (1) Evaluate Algebraic Expressions
2) 8x - 2; x = -2
A) 14 B) 18 C) -18 D) -14
Objective: (1) Evaluate Algebraic Expressions
3) 2(x + 1) + 12; x = -3
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A) 2 B) 22 C) -8 D) 8
Objective: (1) Evaluate Algebraic Expressions
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4) 3x2 + 9y; x = 7 and y = 8
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A) 255 B) 513 C) 219 D) 1,392
Objective: (1) Evaluate Algebraic Expressions
5) (x + 3y)2 ;
A) 25
x = 2 and y = 3
B) 11
Objective: (1) Evaluate Algebraic Expressions
IS C) 22 D) 121
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6) 3 + 6(x - 5)3 ; x=7
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A) 72 B) 51 C) 15 D) -45
Objective: (1) Evaluate Algebraic Expressions
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7) x2 - 2(x - y); x = 8 and y = 2
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A) 50 B) 52 C) -76 D) 46
Objective: (1) Evaluate Algebraic Expressions
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7(x + 7)
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8) ; x=5
2x + 4
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A) B) 12 C) 6 D) - 1
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Objective: (1) Evaluate Algebraic Expressions
y - 8x
9) ; x = -4 and y = 5
4x + xy
37 27 35 3
A) - B) - C) - D)
36 4 36 4
Objective: (1) Evaluate Algebraic Expressions
1
, Solve.
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10) The formula C = (F - 32) expresses the relationship between Fahrenheit temperature, F, and Celsius
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temperature, C. Use the formula to convert 50°F to its equivalent temperature on the Celsius scale.
A) 10°C B) 46°C C) 32°C D) 2°C
Objective: (2) Use Mathematical Models
11) A stone is dropped from a tower that is 790 feet high. The formula h = 790 - 16t2 describes the stone's height
above the ground, h, in feet, t seconds after it was dropped. What is the stone's height 3 seconds after it is
released?
A) 646 ft B) 621 ft C) 656 ft D) 671 ft
Objective: (2) Use Mathematical Models
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12) If a rock falls from a height of 80 meters above the ground, the height H (in meters) after x seconds can be
approximated using the formula H = 80 - 4.9x2 . What is the height of the rock after 2 seconds?
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A) -16.04 m B) 60.4 m C) 70.2 m D) 300.4 m
Objective: (2) Use Mathematical Models
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13) As the relative humidity increases, the temperature seems higher than it is. The formula T = 0.115x + 59.63
approximates the apparent temperature for an actual temperature of 65°F, where x is the relative humidity. What
is the apparent temperature (to the nearest degree) for a relative humidity of 50%?
A) 60°F B) 343°F
Objective: (2) Use Mathematical Models IS C) 65°F D) 110°F
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14) The winning times (in seconds) in a speed-skating event for men can be represented by the formula
T = 46.94 - 0.092x, where x represents the year, with x = 0 corresponding to 1920. (For example in 1992, x would
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be 1992 - 1920 = 72.) According to the formula, what was the winning time in 1974? Round to the nearest
hundredth.
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A) 2,529.79 sec B) 43.81 sec C) 42.89 sec D) 41.97 sec
Objective: (2) Use Mathematical Models
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15) It is estimated that y, the number of items of a particular commodity (in millions) sold in the United States in year
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x, where x represents the number of years since 1990, is given by the formula y = 1.53x + 3.55. That is, x = 0
represents 1990, x = 1 represents 1991, and so on. According to the formula, how many items sold in 1996?
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A) 30.48 millions B) 12.73 millions C) 3.55 millions D) 14.26 millions
Objective: (2) Use Mathematical Models
Find the intersection of the two sets.
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16) {1, 7, 4, 8} {4, 6, 1}
A) {1, 4} B) {1} C) D) {1, 4, 8, 7, 6}
Objective: (3) Find the Intersection of Two Sets
17) {1, 3, 9} {5, 11}
A) {1, 9} B) C) {1, 5, 9, 3, 11} D) {3, 9}
Objective: (3) Find the Intersection of Two Sets
18) {1, 3, 4, 6}
A) {1, 3} B) {4, 6} C) D) {1, 3, 4, 6}
Objective: (3) Find the Intersection of Two Sets
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