Question

affirmative
af·fir·ma·tive
I
 /əˈfɚmətıv/  adj  
   formal   : saying or showing that the answer is “yes” rather than “no”
   She gave an affirmative answer, not a negative answer.
  af·fir·ma·tive·ly  adv  
   She answered (the question) affirmatively.
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II
  noun  
  in the affirmative
    formal   : with a reply that means “yes”
    He answered (the question) in the affirmative. [=he said “yes”]
    — compare in the negative at negative, 2