Multiple Choice Identify the
choice that best completes the statement or answers the question.
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1.
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Find the domain of the rational function. ![mc001-1.jpg](chapter_7_post_test_files/mc001-1.jpg)
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2.
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The average cost ![mc002-1.jpg](chapter_7_post_test_files/mc002-1.jpg) for a manufacturer to produce x units
of a product is given by ![mc002-2.jpg](chapter_7_post_test_files/mc002-2.jpg) . Describe the domain.
a. | all ![mc002-3.jpg](chapter_7_post_test_files/mc002-3.jpg) | b. | all ![mc002-4.jpg](chapter_7_post_test_files/mc002-4.jpg) | c. | all ![mc002-5.jpg](chapter_7_post_test_files/mc002-5.jpg) | d. | all integers ![mc002-6.jpg](chapter_7_post_test_files/mc002-6.jpg) | e. | all ![mc002-7.jpg](chapter_7_post_test_files/mc002-7.jpg) |
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3.
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Multiply and simplify. ![mc003-1.jpg](chapter_7_post_test_files/mc003-1.jpg)
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4.
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Multiply and simplify. ![mc004-1.jpg](chapter_7_post_test_files/mc004-1.jpg)
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5.
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Multiply and simplify. ![mc005-1.jpg](chapter_7_post_test_files/mc005-1.jpg)
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6.
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Combine and simplify. ![mc006-1.jpg](chapter_7_post_test_files/mc006-1.jpg)
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7.
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Simplify the complex fraction. ![mc007-1.jpg](chapter_7_post_test_files/mc007-1.jpg)
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8.
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Simplify the complex fraction. ![mc008-1.jpg](chapter_7_post_test_files/mc008-1.jpg)
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9.
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Simplify the complex fraction. ![mc009-1.jpg](chapter_7_post_test_files/mc009-1.jpg)
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10.
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Simplify the complex fraction. ![mc010-1.jpg](chapter_7_post_test_files/mc010-1.jpg)
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11.
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Simplify the expression. ![mc011-1.jpg](chapter_7_post_test_files/mc011-1.jpg)
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12.
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Use the function ![mc012-1.jpg](chapter_7_post_test_files/mc012-1.jpg) to find and simplify the expression for ![mc012-2.jpg](chapter_7_post_test_files/mc012-2.jpg) .
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13.
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Solve the equation. Check for extraneous solutions. ![mc013-1.jpg](chapter_7_post_test_files/mc013-1.jpg)
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14.
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Solve the equation. Check for extraneous solutions. ![mc014-1.jpg](chapter_7_post_test_files/mc014-1.jpg)
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15.
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Solve the equation. Check for extraneous solutions. ![mc015-1.jpg](chapter_7_post_test_files/mc015-1.jpg)
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16.
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Write an equation that relates the variables. s is directly
proportional to the ![mc016-1.jpg](chapter_7_post_test_files/mc016-1.jpg) of t
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17.
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Find the constant of proportionality given ![mc017-1.jpg](chapter_7_post_test_files/mc017-1.jpg) , and ![mc017-2.jpg](chapter_7_post_test_files/mc017-2.jpg) when ![mc017-3.jpg](chapter_7_post_test_files/mc017-3.jpg) .
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18.
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Complete the table given below for ![mc018-1.jpg](chapter_7_post_test_files/mc018-1.jpg) .
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19.
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Complete the table given below for ![mc019-1.jpg](chapter_7_post_test_files/mc019-1.jpg) . ![mc019-2.jpg](chapter_7_post_test_files/mc019-2.jpg)
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20.
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You and your college roommate travel to your respective hometowns in the same
amount of time. You drive ![mc020-1.jpg](chapter_7_post_test_files/mc020-1.jpg) miles and your friend drives ![mc020-2.jpg](chapter_7_post_test_files/mc020-2.jpg)
miles. Your friend’s average speed is 6 miles per hour lower than your average speed. What is
your average speed?
a. | miles per hour | b. |
miles per hour | c. | miles per hour | d. |
miles per hour | e. | miles per
hour |
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