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Sagot :

VINS

Réponse :

bonjour

A ( 5) = 5 et B ( - 3 ) = -2

( - 2 - 5 ) / ( - 3 - 5 )= - 7/- 8 = 7/8

ax = 7 x /8

A ( 5) = 5

5 * 7/8 + b = 5

35/8 + b = 5

b = 40/8 - 35/8 = 5 /8

f (x) = 7 x /8 + 5 /8

B ( - 3 )= - 3 * 7/8 + 5/8 = - 21/8 + 5/8 = - 16/8 = - 2

Explications étape par étape

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