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If ( -9<x<-2 ) is to be shown on a number line, what kind of endpoints will be used?

Answer and explanation

Correct answer: Both open dots

Both signs are ( < ), so both boundary values are excluded. A strict inequality always gives an open dot.

Related tags

Linear-InequalitiesOpen-IntervalNumber-LineRepresentation On Number LineLinear InequalitiesMathematicsClass 11 Mcq

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