CHAPTER 7 TEST REVIEW ANSWER KEY
1
PART I:
Answer all questions in this part. Circle the number representing your
response.
2.)
How many solutions does the system of equations below have?
x 2y = 4
4x 8y = 12
a.)
One Solution
b.)
Two Solutions
c.)
No Solution
d.)
Infinitely Many Solutions
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
y
x
1.)
When drawn on the same set of axes,
the graph of the equations y = 3x 4
and y =
x 7.5 intersect at the point
whose coordinates are
a.)
(1, 7)
c.)
(7, 1)
b.)
(7, 1)
d.)
(1, 7)
y=3x4
y=x7.5
1
2
1
2
4(1x  2y = 4)
4x  8y = 12
4x + 8y = 16
4x  8y = 12
0 = 4
No!
3(2x + 1y = 8)
1x  3y = 3
6x + 3y = 24
1x  3y = 3
7x
= 21
7
7
x = 3
2x + y = 8
2(3) + y = 8
6 + y = 8
 6
 6
y = 2
3.)
What is the value of
y
in the following system of equations?
2x + y = 8
x 3y = 3
(1, 7)
Name ____________________________
Date _____________
Test Review Solving Systems Of Equations,
Int. Algebra Class ______
Word Problems
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2
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 Fall '13
 MikeStrnatko
 Systems Of Equations, Equations, Yorkshire Television, Anthony, Review Answer Key, Test Review Answer

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