Reference no: EM131024814
1. The equation of the horizontal line passing through (1, -5) is _______
A. x = 1
B. y = 1
C. x = -5
D. y = -5
2. The standard form of the inequality x - 4y 12 is _______
A. y> - ¼ x + 3
B. 4y < x - 12
C. y< ¼ x - 3
D. y> ¼ x - 3
3. Which of the following points satisfies the linear inequality 3x - y 10? _______
A. (2, -1)
B. (3, 0)
C. (4, 3)
D. (5, 4)
4. Which of the following equations does the graph represent? _____
A. y = 2x + 1
B. y = (1/2)x 1
C. y = (1/2)x + 1
D. y = 2x - 2
5. The unshaded (white) portion of the graph is the solution set of which inequality? ______
A. y 2x + 4
B. y 2x + 4
C. y 2x 4
D. y 2x 4
6. Which of the following points is in the feasible set of the system of inequalities?
y >0
x + y < 7
2x + y < 9
A. (1, 5)
B. (3, 4)
C. (4, -6)
D. (5, 1)
7. Which of the following is TRUE about the line through the points (2, 5) and
(2, 7)? _______
A. The slope is undefined.
B. The slope is negative.
C. The slope is 0.
D. The slope is positive.
8. What is the equation of a line having slope 5 and passing through the point
(3, 7)? ______
A. y = 3x 2
B. y = 5x 8
C. y = 5x 2
D. y = 5x 
SECTION 2.1 # 36......PAGE 68 (CHAPTER 2)
9. Solve the linear system by using the GAUSSIAN elimination method. (SHOW ALL WORK)
-2x - 3y +2z = -2
x + y = 3
-x - 3y + 5z = 8
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