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If \(f(x)=x^2+1\) and \(g(x)=2x-3\), what is \((f+g)(x)\)?

Answer and explanation

Correct answer: \(x^2+2x-2\)

The sum of two functions is found by adding their values pointwise: \((f+g)(x)=f(x)+g(x)=(x^2+1)+(2x-3)=x^2+2x-2\). Option B has the wrong sign for the linear term and an incorrect constant term. In exams, combine like powers separately and check the signs carefully.

Related tags

Relations And FunctionsAlgebra Of FunctionsFunction AdditionQuadratic FunctionsAlgebra Of Real FunctionsMathematicsClass 11 Mcq

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