If f(x) = (x + 2) / (x-2) for all integers except x=2, which of the following has the greatest value?
a) f(-1) b) f(0) c) f(1) d) f(3) e) f(4)

• d) f(3)
  
  If f(x) = (x + 2) / (x-2) for all integers except x=2,
  f(3) has the greatest value = 5
• 13 years agoHelpfull: Yes(6) No(1)
• The easiest way to solve this is to substitute the answer options in the expression and see which has the greatest value.
  (-1 + 2) / (-1-2) = -2 / 2 = -1;
  (0 + 2) / (0-2) = 2/ -2 = -1;
  (1 + 2) / (1-2) = 3/-1 = -3;
  (3 + 2) / (3-2) = 5/1 = 5;
  (4+ 2) / (4-2) = 6/2 = 3
• 10 years agoHelpfull: Yes(2) No(0)
• put x=3
  so
  (3+2)/3-2
  5/1
  5
  so at f(3) our condition is satisfied
  so right ans is f(3)
• 7 years agoHelpfull: Yes(0) No(0)