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If (f:\mathbb{R}\setminus{-3}\to\mathbb{R}\setminus{2}) is given by (f(x)=\frac{2x-1}{x+3}), which statement about (f) is correct?

Answer and explanation

Correct answer: It is bijective

Step 1: From (y=\frac{2x-1}{x+3}), we get (x=\frac{1+3y}{2-y}). Step 2: For every (y\neq2), there is a unique (x), and (x\neq-3). Step 3: A function with exactly one preimage for every codomain value is bijective.

Related tags

BijectionRational FunctionInverseFunctionsRelations And FunctionsMathematicsClass 12 Mcq

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