Math 12 Chapter 5
Linear Inequalities and Linear Programming
Test - 6

Math Class 12
1. The order (or sense) of an inequality is changed by multiplying its each side by a negative constant.


2. The order (or sense) of an inequality is changed by adding a constant to its each side.


3. A solution of a linear inequality in x and y is an order pair which does not satisfy the inequality.


4. A vertical line divides the plane into upper and lower half planes.


5. The order pairs (x,y) satisfying the inequalities ax + by # c, ax + by @ c are called half planes


6. There are finite many ordered pairs that satisfy the inequality ax + by # c, so its graph will be a half plane.


7. The graphs of ax + by # c are closed half planes


8. The graphs of ax + by £ c or ax + by ³ c are open half plane.


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