Examples on the domain of a function

(Math 152A Supplement for 4.6)

 

Find the domain of the following functions (hold your mouse on the yellow rectangles for the solution to the odd problems).

1)                3                   2)                   5                   3)    
       y  =                                    y  =                                   y  =  3x - 7
                    x                                       x + 1

        x not equal to zero                                                           {Real Numbers}  

 

4)                 4x                   5)                    5x                6)    
     y  =                                           y  =                                y  =  x2 - 3x + 4
                  2x + 3                                     7x - 1

                                                      x not equal to 1/7                  

 

7)    y  =  3x2 - 5x + 2         8)               9)            

        {Real Numbers}                                                    {x | x >= 3}

 

10)                      11) 

                                                                      {x | x > -5

 

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