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AP EAMCET · Maths · Functions

Let \(A=\{-4,-2,-1,0,3,5\}\) and \(f: \mathrm{A} \rightarrow \mathbf{R}\) be defined by \(f(x)=\left\{\begin{array}{ccc}3 x-1 & \text { for } & x>3 \\ x^2+1 & \text { for } & -3 \leq x \leq 3 \\ 2 x-3 & \text { for } & x < -3\end{array}\right.\) Then the range of \(f\) is

  1. A \(\{-11,5,2,1,10,14\}\)
  2. B \(\{-11,-7,2,1,8,14\}\)
  3. C \(\{-11,5,2,1,8,14\}\)
  4. D \(\{-11,-7,-5,1,10,14\}\)
Verified Solution

Answer & Solution

Correct Answer

(A) \(\{-11,5,2,1,10,14\}\)

Step-by-step Solution

Detailed explanation

Here, function is defined for \(f: A \rightarrow R\) \[ f(x)=\left\{\begin{array}{ccc} 3 x-1 & \text { for } & x>3 \\ x^2+1 & \text { for } & -3 \leq x \leq 3 \\ 2 x-3 & \text { for } & x < -3 \end{array}\right. \] and \(A=\{-4,-2,-1,0,3,5\}\)…