Bonjour aidez moi svp

Déterminer la fonction affine
f(-1) = -4 et f(3)=8
On cherche a et b

By: USER4271
27 Agustus 2025 mathematiques 5 minutes
4.5
114 views 114 comments 13 shares

Question

Grade: Education Subject: mathematiques
Bonjour aidez moi svp

Déterminer la fonction affine
f(-1) = -4 et f(3)=8
On cherche a et b
Asked by:
114 Viewed 114 Answers

Answer (114)

Best Answer
(251)

fonct affine:f(x)=ax+b

f(-1) =-4

-4 =a(-1)+b

b=a-4

f(3)=8

8=a(3)+b

b=3a+8

en faisant b=b

a-4=3a+8

a=-6

b=a-4

b=-6-4

b= -10

f(x)= -6x-10

Answered on 27 Agustus 2025

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