Mathematics · JEE | RELATIONS AND FUNCTIONS

Match List-I with List-II: List-I List-II A Modulus function \( f(x) = |x| \) on \( \mathbf{R} \) I Bijective function B Function \( f(x) = 3x \) on \( \mathbf{R} \) II Neither one-one nor onto C Identity function \( I_N(x) = x \) on \( \mathbf{N} \) III One-one and onto D Constant function \( f(x) = c \) IV Many-one and into Choose the correct answer from the options given below:

1. A
   A-(III), B-(I), C-(II), D-(IV)
2. B
   A-(I), B-(II), C-(III), D-(IV)
3. C
   A-(II), B-(III), C-(I), D-(IV)
4. D
   A-(IV), B-(II), C-(III), D-(I)