Réponses

  • Utilisateur Brainly
2014-04-11T17:14:30+02:00
Fonction affine = ax+b


f(1) =5 = a+b = 5
f(4)=11
= 4a+b = 11

il faut resoudre le system

-a-b = -5
4a+b = 11

3a = 6
a = 2

a+b = 5
2+b = 5
b = 3

f(x) = 2x+3