Mathematics
Grade10
Easy

Question

For a relation, where y is a function of x, and y = 4 when x = 6; which of the following does not represent another possible mapping in the relation?

  1. x = 1 maps to y = 6    
  2. x = 0 maps to y = 0    
  3. x = 4 maps to y = 6    
  4. x = 6 maps to y = 2    

Hint:

Since y is a function of x. No same value of x should be mapped to different values of y.

The correct answer is: x = 6 maps to y = 2


    Step by step solution:
    According to the definition of a function, no same values of x can be mapped to different values of y.
    It is given that y = 4 when x = 6.
    Thus, the option among the given options which does not represent another possible mapping in the relation is x=6 maps to y = 2.
    Hence, option(a) is the correct option.

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