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MathMentor

Learn with Mentor · 7 min

Write Inequalities from Number-Line Graphs

Read a described number-line graph by turning the circle into strict or inclusive notation and the shading direction into less-than or greater-than notation.

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Reverse the graphing steps

These questions give the graph in words, such as 'Open circle at 9, shaded to the left.' To write the inequality, read the circle type and the shading direction, then put the boundary number after the sign.