If x increases linearly, how will a-x behave (a>1) ?

a. Increase linearly
b. Decrease linearly
c. Increase exponentially
d. Decrease exponentially

• its not a-x dear... its a^-x and the right answer will be decrease exponentially...
  put a=2 and check fr values of x.
  x=0 f()=1
  x=1 f()= 1/2
  x=2 f()= 1/4
  x=3 f()= 1/8 and so on
• 10 years agoHelpfull: Yes(32) No(3)
• B. Decrease linearly
  
  put a=2(for eg)
  since 'x' increases linearly;
  2-1=1,
  2-2=0,
  2-3=-1,
  2-4=-2 so it decreases linearly :)
• 10 years agoHelpfull: Yes(6) No(15)
• Its a^-x
  
  and it will decrease exponentially
• 8 years agoHelpfull: Yes(2) No(1)
• d. Decrease exponentially
• 8 years agoHelpfull: Yes(2) No(0)
• d,it decreases exponentially
• 8 years agoHelpfull: Yes(2) No(0)
• It will increase linearly with difference of a
• 8 years agoHelpfull: Yes(0) No(3)
• ans :d
  given x increase lineraly..
  sub x =0,1,2,3,.. in a^-x
  x=0 f()=1
  x=1 f()=1/a
  x=2 f()=1/a^2
  clearly given a>1 hence the ans is D
• 8 years agoHelpfull: Yes(0) No(1)
• b
  because decreaseing linearly
• 5 years agoHelpfull: Yes(0) No(1)