bonjour
d2 ( 0) = - 180
d 2( 10) = - 120
( - 120 + 180 ) / 10
= 60/10 = 6
ax = 6 x
d (0 ) = - 180 donc b = - 180
fonction = 6 x - 180
d2 ( - 120 ) = - 120 *6 - 180 = - 720 - 180 = - 900
donc B ∉ D2
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bonjour
d2 ( 0) = - 180
d 2( 10) = - 120
( - 120 + 180 ) / 10
= 60/10 = 6
ax = 6 x
d (0 ) = - 180 donc b = - 180
fonction = 6 x - 180
d2 ( - 120 ) = - 120 *6 - 180 = - 720 - 180 = - 900
donc B ∉ D2