| 1 |
The feasible region is ________ if it can easily by enclosed within a circle. |
- A. Bounded
- B. Exist
- C. Unbounded
- D. None of these
|
| 2 |
The system of _________ involved in the problem concerned is called problem constraints: |
- A. Linear inequalities
- B. Equations
- C. Linear equalities
- D. None of these
|
| 3 |
The inequality y > b is the open half plane to the ______ of the boundary line y = b: |
- A. Above
- B. Left
- C. Below
- D. Right
|
| 4 |
(1, 0) is the solution of inequality : |
- A. 7x + 2y < 8
- B. x - 3y < 0
- C. 3x + 5y > 6
- D. -3x + 5y > 2
|
| 5 |
The graph of linear equation of the form ax + by = c is a line, which divides the plane into ______ disjoint regions, where a, b and c are constants and a, b are not both zero. |
- A. One
- B. Two
- C. Thre
- D. None of these
|
| 6 |
For different values of k, the equation 4x + 5y = k represents lines ______ to the line 4x + 5y = 0. |
- A. Perpendicular
- B. Parallel
- C. Equal
- D. None of these
|
| 7 |
|
- A. One variable
- B. Three variable
- C. Two variable
- D. Four variable
|
| 8 |
The order (or sense) of an inequality is changed by ________, it each side by a negative constant. |
- A. Adding
- B. Subtracting
- C. Dividing
- D. None of these
|
| 9 |
x = 2 is a vertical line perpendicular to _____________: |
- A. x - axis
- B. x - axis may be
- C. y - axis
- D. None of these
|
| 10 |
|
- A. Left or right
- B. Upper or lower
- C. Open
- D. None of these
|
