if f(x) is a function for all real numbers x holds good for maximum of 2x+4 and 12+3x..then wat is the value of x so that f(x) is equal to 2x+4..Ans is -9

• ans is -9
  
  maximum (2x+4 ,12+3x)
  and ques says maximum is 2x+4
  if x= -9 2x+4 = -14 and 12+3x= -15 maximum is -14
  
  so ans is -9
• 12 years agoHelpfull: Yes(6) No(2)
• i think its ans should be -8
• 12 years agoHelpfull: Yes(3) No(5)
• options are
  a)-9
  b)0
  c)-6
  d)-7
• 12 years agoHelpfull: Yes(2) No(0)
• can't understand the question anyone please explain.
• 12 years agoHelpfull: Yes(1) No(2)
• 2x+4=12+3x
  x=-8
• 12 years agoHelpfull: Yes(1) No(0)
• let f1(x)=12+3x
  f1(-8)=-12
  and f2(x)=2x+4
  f2(-8)=-12
  so ans is -8
  
  
• 12 years agoHelpfull: Yes(1) No(1)