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Mathematics for IGCSE & O level - Inequalities (Section 2 - No. 31)

Which number line correctly represents the solution to the inequality x < 4?
A number line with a closed circle at 4, and shading to the right.
A number line with an open circle at 4, and shading to the right.
A number line with a closed circle at 4, and shading to the left.
A number line with an open circle at 4, and shading to the left.

توضيح

x<4 means all numbers less than 4, which is represented by an open circle at 4 and shading to the left.

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