Ejercicios:

             X+4, si x<1

F(x)=    8-x,  si x>1

x	f(x)=x+4
1	5
0	4
-1	3

x	f(x)=8-x
1	7
2	6
3	5

                   

                   

DOM)- α,+ α (

REC)7,- α (