Répondre :
bonjour
g (x) = ( 1 + x ) / 2
g ( 0 ) = 1 /2
g ( 1 ) = ( 1 + 1 ) /2 = 2 /2 = 1
g ( 4) = ( 1 + 4 ) /2 = 5 /2
g ( - 2 ) = ( 1 - 2 ) /2 = - 1 /2
g ( - 3 ) = ( 1 - 3 ) /2 = - 2 /2 = - 1
bon WE
bonjour
g (x) = ( 1 + x ) / 2
g ( 0 ) = 1 /2
g ( 1 ) = ( 1 + 1 ) /2 = 2 /2 = 1
g ( 4) = ( 1 + 4 ) /2 = 5 /2
g ( - 2 ) = ( 1 - 2 ) /2 = - 1 /2
g ( - 3 ) = ( 1 - 3 ) /2 = - 2 /2 = - 1
bon WE