bonjour
a) f ( -2 ) = 7
b ) f ( 1) = - 2
f ( -3 ) = 10 et f ( 0 ) = 1
( 1 - 10 ) : ( 0 + 3 ) = - 9 /3 = - 3
ax = - 3 x
f ( 0) = 1 donc b = 1
f (x) = - 3 x + 1
f (10) = - 30 + 1 = - 29
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bonjour
a) f ( -2 ) = 7
b ) f ( 1) = - 2
f ( -3 ) = 10 et f ( 0 ) = 1
( 1 - 10 ) : ( 0 + 3 ) = - 9 /3 = - 3
ax = - 3 x
f ( 0) = 1 donc b = 1
f (x) = - 3 x + 1
f (10) = - 30 + 1 = - 29