3 different ways to show how the function f  links

the input { 1,2, 3,4} to the output {2,4,6,8}

 

                                    

i)           ii)            iii)            

 

so f(x) = 2x                         The “f of x” equals 2x.

 

 

The function f such that 1 maps to 5, 2 maps to 10 is described below :-

 

    so f(x) = 5x      and         

 

·       To calculate the " f of x" for a given function f (x).

 

 

 

 

 

                                                   

 

 

 

 

 

 

 

Solution