Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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1.
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Determine whether  is a solution of the system of equations
below. 
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2.
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Use the graph of the equations to determine the solution (if any) of the system
of linear equations.
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3.
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Use the graph of the equations to determine the solution (if any) of the system
of linear equations.
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4.
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Select the graphs of the equations  and approximate any
solutions of the system of linear equations.
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5.
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Select the graphs of the equations below and find solutions of the system of
linear equations (if any). 
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6.
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A small company produces bird feeders that sell for  per unit.
The cost of producing each unit is  , and the company has fixed costs of  . Let the cost function  be the total cost to produce x bird
feeders and let the revenue function  be the total revenue from selling x
bird feeders. Graph the cost and revenue function and find the point of intersection of the
graphs.
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7.
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If possible, solve the system below by the method of substitution. 
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8.
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Solve the system of equations below by the method of substitution. Verify the
solution by including a graph. 
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9.
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Solve the system of linear equations  by the method of
substitution.
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10.
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Find the value of  such that the system of linear equations
below is inconsistent. 
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11.
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If possible, solve the system below by the method of elimination. Use the graph
to check the solution.  
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12.
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If possible, solve the system below by the method of elimination. 
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13.
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If possible, solve the system below by the method of elimination. 
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14.
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Solve the system of equations below by the method of elimination. Verify the
solution by including a graph. 
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15.
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Use the most convenient method (graphing, substitution, or elimination) to solve
the system of linear equations. 
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16.
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You are offered two different sales jobs. Job A offers an annual salary of  plus a year-end bonus of  of your total sales. Job B offers an annual
salary of  plus a year-end bonus of 
of your total sales. How much would you have to sell to earn the same amount at each job?
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17.
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You and a friend go to a Mexican restaurant. You order 
tacos and  enchiladas, and your friend orders  tacos and  enchiladas. Your bill is 
plus tax, and your friend's bill is  plus tax. How much does each 
cost? Round your answer to one decimal place.
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18.
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Graph the solution of the system of linear inequalities below. 
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19.
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Graph the solution of the system of linear inequalities below. 
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20.
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Graph the solution of the system of linear inequalities below. 
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