Functions (2)

f : A B, f(x) = y; A, B
Find the range of f, the set: {y B : f(x) = y}

1. f : {-2,-1,0,1,2} , f(x)= 2x-1 if x0 x + 1 if x>0	2. f : {-2,-1,0,1,2} , f(x)= x2 + 1   if x {-1,0,1} x   if x {-2,2}
3. f : {-4,-3,-2,-1,0} , f(x)= x + 3 if x-2 x if x>-2	4. f : {-3,-1,0,1,3} , f(x)= x2 +1   2 if x-1 x + 2if x>-1
5. f : {-4,-2,0,1,2} , f(x)= x 2 +   if x0 1 - x  if x>0	6. f : {1,2,...,10} , f(x)= 1 - x   if x5 x + 1   if x>5
7. f : {1,2,...,10} , f(x)= x2     if x<5 x - 1 if x5	8. f : {0,1,2,...,10} , f(x)= - x      if x0 x - 10 if x>0
9. f : {0,1,2,...,10} , f(x)= x3 - 1 if x3 x         if 3<x<5 1         if x5	10. f : {0,1,2,...,10} , f(x)= 2        if x<5 x-1     if 5<x<9 x2-99 if x=10
11. f : {0,1,2,...,100} , f(x)= -x         if x50 x - 100 if x>50	12. f : {1,2,...,100} , f(x)= x2 + 1 if x7 3         if x>7
13. f : {1,2,...,100} , f(x)= 1 - x if x10 1       if x>0	14. f : {1,2,...,100} , f(x)= 5        if x95 x-100 if x>95

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