Réponse :
bonjour
f( -3 ) = 23 et f (7 ) = 3
(3 - 23)/ (7+3 ) = -20/10 = - 2
ax = - 2 x
f ( -3 ) = 23
-3 * -2 + b = 23
b = 23 -6 = 17
f (x ) = - 2 x + 17
d'où f (7 ) = 7 * -2 +17 = -14 +17 = 3
Copyright © 2024 ELIBRARY.TIPS - All rights reserved.
Lista de comentários
Réponse :
bonjour
f( -3 ) = 23 et f (7 ) = 3
(3 - 23)/ (7+3 ) = -20/10 = - 2
ax = - 2 x
f ( -3 ) = 23
-3 * -2 + b = 23
b = 23 -6 = 17
f (x ) = - 2 x + 17
d'où f (7 ) = 7 * -2 +17 = -14 +17 = 3