Mathematics for IGCSE & O level - Inequalities (Section 2 - No. 32)
Solve for x: 4x - 1 < 7 and represent on a number line.
x < 2, open circle at 2, and shading to the left.
x < 2, open circle at 2, and shading to the right.
x < 2, closed circle at 2, and shading to the left.
x < 2, closed circle at 2, and shading to the right.
คำอธิบาย
4x < 8, thus x < 2. Open circle at 2 with shading to the left.