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Which interval is formed on the number line when |2x-3|<5 is represented?

Answer and explanation

Correct answer: (-1,4)

The governing concept is converting an absolute-value inequality into a double inequality. For |A|<5, the equivalent condition is -5<A<5. Substituting A=2x-3 gives -5<2x-3<5. Add 3 throughout to obtain -2<2x<8, and divide by the positive number 2 to get -1<x<4. Both inequalities are strict, so neither endpoint is included; the interval is therefore (-1,4). Hence option D is correct. Options A and C incorrectly use closed endpoints and also have wrong limits. Option B has the endpoints in the wrong positions and does not result from the required algebra.

Related tags

Linear-InequalitiesAbsolute-ValueInterval-NotationRepresentation On Number LineLinear InequalitiesMathematicsClass 11 Mcq

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