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Algebra I Chapter 4 Quiz-System of Equations and Inequalities

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 

Determine whether mc001-1.jpg is a solution of the system of equations.
mc001-2.jpg
a.
Yes
b.
No
 

 2. 

Is (–4, 3) a solution of the following system of equations?
mc002-1.jpg
a.
No
b.
Yes
 

 3. 

Solve by substitution:
mc003-1.jpg
a.
(4, –3)
d.
Dependent
b.
(–4, –9)
e.
No solution
c.
(0, –6)
 

 4. 

Solve by the addition method.
mc004-1.jpg
a.
mc004-2.jpg
d.
mc004-5.jpg
b.
mc004-3.jpg
e.
mc004-6.jpg
c.
mc004-4.jpg
 

 5. 

Solve by the addition method:
mc005-1.jpg
a.
(14, 12)
d.
Dependent
b.
(9, 9)
e.
No solution
c.
(4, 6)
 

 6. 

Solve by the addition method:
mc006-1.jpg
a.
(–3,–8)
d.
(1,–4)
b.
Dependent. The solutions satisfy mc006-2.jpg.
e.
No solution
c.
(5, 0)
 

 7. 

Evaluate the determinant:
mc007-1.jpg
a.
16
d.
20
b.
-12
e.
8/
c.
0
 

 8. 

A baker purchased 12 lb of wheat flour and 14 lb of rye flour for a total cost of $18.16. A second purchase, at the same prices, included 14 lb of wheat flour and 13 lb of rye flour. The cost of the second purchase was $18.72. Find the cost per pound of the wheat flour and the rye flour.
a.
Wheat:   $0.74; rye: $0.65
d.
Wheat:   $0.67; rye: $0.74
b.
Wheat:   $0.55; rye: $0.74
e.
Wheat:   $0.65; rye: $0.74
c.
Wheat:   $0.65; rye: $0.71
 

 9. 

Graph the solution set.
mc009-1.jpg
a.
mc009-2.jpg
d.
mc009-5.jpg
b.
mc009-3.jpg
e.
mc009-6.jpg
c.
mc009-4.jpg
 

 10. 

Graph the solution set.
mc010-1.jpg
a.
mc010-2.jpg
d.
mc010-5.jpg
b.
mc010-3.jpg
e.
mc010-6.jpg
c.
mc010-4.jpg
 



 
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