Solid line - GCSE Maths Definition
Reviewed by: Dan Finlay
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In GCSE Mathematics, a solid line refers to a line drawn on a graph that is unbroken. In statistical graphs, solid lines could be used to distinguish what properties of the data they are showing from other lines on the graph; this would make comparisons easy. When graphing inequalities, solid lines are used to show that any points on the line, are included in the inequality - i.e. they show greater than or equal to or less than or equal to inequalities.
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