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Question
The region represented by the inequality y ≤ 0 lies in _______ quadrants.
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Solution
The region represented by the inequality y ≤ 0 lies in III and IV quadrants.
Explanation:
The region represented by the inequality y < 0 lies in III and IV quadrants. It represents the entire half-plane below the x-axis (where the y-coordinate is negative) and includes the x-axis itself (where y = 0), covering all points where the ordinate is non-positive.
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| P | ( ___,___ ) | 9( ___ ) + 13( ___ ) | ______ | ______ |
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In the figure, ABCD represents
The set of the feasible solution where
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| Point | Coordinates | Z = 4x + 5y | Values | Remark |
| A | (12, 0) | 4(12) + 5(0) | 48 | |
| B | ( ___, ___ ) | 4( ___) + 5(___ ) | ______ | ______ |
| C | ( ___, ___ ) | 4( ___) + 5(___ ) | ______ | |
| D | (0, 10) | 4(0) + 5(10) | 50 |
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