Question
Solve graphically :x ≥ 0 and y ≥ 0
✓
Answer
Consider the lines whose equations are x = 0, y = 0. These represents the equations of Y-axis and X-axis respectively, which divide the plane into four parts. Since x ≥ 0, y ≥ 0, the solution set is in the first quadrant which is shaded in the graph.
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