Mathematics for IGCSE & O level - Inequalities (Section 2 - No. 5)
Which of the following points, when substituted into the inequality, would determine the direction of the inequality?
(0, 0)
(1, 1)
(2, 0)
(3, 3)
คำอธิบาย
Testing the point (0,0) helps determine the direction of the inequality