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JAMB - Mathematics (1994 - No. 41)

Find the inequality which represents the shaded portion in the diagram
2x - y - 2 \(\geq\) 0
2x - y - 2 \(\leq\) 0
2x - y - 2 < 0
2x - y - 2 > 0

解释

2x - y - 2 \(\geq\) 0 = y \(\leq\) 2x - 2

when x = 0, y = -2, when y = 0, x = 1

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