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If (f:\mathbb{R}\to\mathbb{R}), (f(x)=ax^2+bx+c) and (a\neq0), what is the correct statement about (f) on all of (\mathbb{R})?

Answer and explanation

Correct answer: It is always not one-one

Step 1: A quadratic function has a parabolic graph. Step 2: On both sides of the vertex, equal height values occur. Step 3: Hence a quadratic with (a\neq0) is not one-one on all of (\mathbb{R}).

Related tags

One-One-FunctionQuadraticGeneral-ResultNon-InjectiveOne One FunctionRelations And FunctionsMathematicsClass 12 Mcq

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