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Linear Equations in Two Variables 2
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B
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D
Result
. . . .

Choose the correct answer to each question.

1. What are the coordinates of the point that lies 13 units below the x-axis and 7 units to the right of the y-axis?
(7,  13)
(7,  −13)
(13,  7)
(−13,  7)
Answer: ( 7 ,    − 13 )
2. Which of the following points is not on the graph of the equation y=3x−4?
(0,  −4)
(−1,  −1)
(2,  2)
(5,  11)
Answer: ( − 1 ,    − 1 )
3. What is/are the x-intercept/s of the graph of the equation y 2 =x+1?
−1
1
−1 and 1
no x-intercept
Answer: −1
4. What is/are the y-intercept/s of the graph of the equation y 2 =x+1?
−1
1
−1 and 1
no x-intercept
Answer: −1 and 1
5.
 Let A and C be real numbers such that A≠0, and let S be the relation S={ (x,  y)| Ax+C=0 }. What is the domain of the relation S?
{ − C A }
{ C A }
an empty set
the set of real numbers
Answer: { − C A }
0
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