1.3    Common Functions

                                                                                                           http://youtu.be/x0E0ZMxZ3Og

1. If , find  and .

2. Find the domain of the following functions.

   (a)                     (b) 

   (c)                   (d) 

   (e) 

   (a) 

   (b) 

   (c) 

   (d) 

   (e) 

3. Find the domain and sketch the graph of the following functions.

   (a) 

   (b) 

   (c) 

   (a)  .  So it’s  Domain : 

  (b) .  So it’s domain :  

 (c) Domain : 

4. Determine whether  is even, odd or neither. If  is even or odd, use symmetry to sketch its graph.

   (a) 

   (b) 

   (c) 

   (d) 

   (e) 

   (f) 

   (a) even function                                               (b) odd function                                          (c) neither

    (d) even  function                                    (e)    odd  function                                               (f) neithe

 5-6. Draw the original and given functions graphs together

5. 

   http://matrix.skku.ac.kr/cal-lab/cal-1-3-5.html  

6. , 

* Smartphone App. of World Mathematicians

https://play.google.com/store/apps/details?id=korean.mathematicians.en

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