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What is midpoint of ( -11 ) and ( -19 )

Answer and explanation

Correct answer: \(-15\)

The midpoint of two numbers on a number line is their average: \(\frac{-11+(-19)}{2}=\frac{-30}{2}=-15\). Therefore, \(-15\) is correct. \(-14\) is not the midpoint because it is 3 units from \(-11\) and 5 units from \(-19\). Exam tip: add the numbers with their signs, then divide by 2.

Related tags

Number SystemsNumber LineMidpointIntegersAverageMathematicsClass 9 Mcq

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