WAEC - Further Mathematics (2019 - No. 24)
Which of these inequalities is represented by the shaded portion of the graph?
2y + x - 3 < 0
2y - x - 3 < 0
2y - x + 3 < 0
2y + x +3 < 0
คำอธิบาย
(0, 1.5), (-3, 0)
m = \(\frac{0 - 1.5}{-3, 0}\) = 0.5
0.5 = \(\frac{y - 1.5}{-3.0}\) = 0.5
y = 0.5x + 1.5
2y = x + 3
2y - x - 3 < 0