bonjour
f (0) = 2 et f( 2 ) = 0
( 0 - 2 ) / ( 2 - 0 ) = - 2 /2 = - 1
ax = - x
f (0) = 2 donc b = 2
f (x) = - x + 2
d'où f ( 2) = - 2 + 2 = 0
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bonjour
f (0) = 2 et f( 2 ) = 0
( 0 - 2 ) / ( 2 - 0 ) = - 2 /2 = - 1
ax = - x
f (0) = 2 donc b = 2
f (x) = - x + 2
d'où f ( 2) = - 2 + 2 = 0