1: A system of linear equations consists of two or more ________.
expressions
linear equations
linear expressions
2: A solution of a system of linear equations is a/an __________ that is a solution of both equations in the system.
line
equation
ordered pair
3: A system of parallel lines will have __________ solution(s).
an infinite number of
no
one
4: Which of the figures is the graph of the system
-4x + 2y = 8
2x - y = 0 ?
Figure A
Figure B
Figure C
5: What is the solution to the system given in Question #4?
(0, 4)
infinite number of solutions
no solution
6: Which of the figures is the graph of the system
x + y = 3
2x - y = 0 ?
Figure D
Figure C
Figure B
7: What is the solution to the system given in Question #6?
(1, 4)
(1, 1)
(1, 2)
8: Which of the figures is the graph of the system
-x + 2y = 5
2x + 3y = -3 ?
Figure B
Figure A
Figure D
9: What is the solution to the system given in Question #8?
(-3, 1)
(2, 3)
(-17/18, 1)
10: Which of the figures is the graph of the system
2x - 4y = -10
-x + 2y = 5 ?
Figure A
Figure B
Figure C
11: What is the solution to the system given in Question #10?
(0, 3)
(2, -1)
There are an infinite number of solutions.
12: Solve the following systems by substitution or elimination.
3x - 2y = 8
2x + 5y = -1
(2, -1)
(2, -3)
(-3, -1)
13:
5x - 2y = 12
2x + 3y = 1
(1, 4)
(1, 2)
(2, -1)
14:
2x - y = 4
6x - 3y = -18
(2, -3)
infinite number of solutions
no solution
15:
3x + 2y = -2
2x - y = -6
(-2, 2)
(2, -1)
no solution
16:
3x - y = 2
x + 2y = 10
(-2, 2)
(2, -3)
(2, 4)
17:
x + 2y = 4
2x + 4y = -8
(2, -1)
(2, 4)
no solution
18:
y = 2x - 3
x + 2y = 14
(4, 5)
(2, 4)
no solution
19:
2x + y = 6
x - y = -3
(1, 1)
(1, 4)
(2, 4)
20:
3x - 2y = 12
7x + 2y = 8
(2, -3)
(2, 4)
(-3, 1)
21:
2x - y = 10
x - 2y = -4
(2, -2)
(8, -2)
(8, 6)
22:
9x - 3y = 24
11x + 2y = 1
(4, 5)
(1, -5)
no solution
23:
2x - 3y = -2
-4x + 6y = 7
(2, -1)
(2, -3)
no solution
24:
3x + 8y = 4
15x + 10y = -10
(-4/3, 1)
(1, 4)
(1, 3/4)
25:
-6x + 10y = -30
3x - 5y = 15
(2, -3)
no solution
infinite number of solutions
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