Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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Solve the system of linear equations by graphing.
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1.
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a. | (8,  ) | c. | (3,  ) | b. | (–2, 4) | d. | (3, –21) |
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2.
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a. | (12, 17) | c. | (8, 21) | b. | (9, 18) | d. | (10, 19) |
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3.
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y = 2 x  7
y = 11 
x
a. | (6, 5) | c. | (4, 1) | b. | (8, 9) | d. | (8, 3) |
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4.
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a. | (9, –3.5) | c. | (6, –4) | b. | (50, 40) | d. | (8, –2) |
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Solve the system of linear equations by substitution. Check your
solution.
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5.
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6.
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7.
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8.
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Solve the system of linear equations by elimination. Check your
solution.
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9.
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10.
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11.
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12.
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Use a graph to solve the equation. Check your solution.
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13.
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14.
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15.
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a. |  | c. |  | b. | no solution | d. | all real values of x |
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Graph the system of linear inequalities.
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16.
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17.
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18.
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19.
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Other
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1.
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Extended Response You have at most 34 minutes to work out. Jogging on the
treadmill burns 40 calories per minute, and lifting weights burns 25 calories per minute. You need to
burn at least 1020 calories during your work out. a. Define the variables. b. Write
a system of linear inequalities that represents this situation. c. Graph the system of
linear inequalities. d. Is it possible to jog for 16 minutes
and lift weights for 16 minutes in this situation? Justify your answer.
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