Question:medium

The solution set of the inequation \( 2x + 3y > 12 \) is

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"Open" half-plane means the boundary line is not included (dashed line), while "closed" would include it (solid line).
Updated On: Jun 12, 2026
  • xy-plane except the points lying on the line \( 2x + 3y = 12 \)
  • Open half plane containing the origin
  • Open half plane not containing the origin
  • xy-plane with all the points lying on the line \( 2x + 3y = 12 \)
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The Correct Option is C

Solution and Explanation


Step 1: Understanding the Concept:

An inequation \( ax + by > c \) defines a half-plane. To determine which side, we test the origin \( (0,0) \).

Step 2: Detailed Explanation:

Substitute \( (0,0) \) into \( 2x + 3y > 12 \):
\[ 2(0) + 3(0) = 0 \]
Since \( 0 > 12 \) is FALSE, the origin is not in the solution set.

The line \( 2x + 3y = 12 \) is excluded because the inequality is strict (\( > \)).

Step 3: Final Answer:

The solution set is the open half-plane not containing the origin.
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