bonjour
f(x ) = 0.5 x - 2
1. coefficient directeur = 0.5
ordonnée = - 2
2. traçage
3 f (0) = - 2
3. f (2) = 1 - 2 = - 1 ⇔ A ∈ courbe
f (4) = 2 - 2 = 0 ⇔ B ∉ courbe
f( - 2 ) = - 1 - 2 = - 3 ⇔ C ∈ courbe
f ( - 4 ) = -2 - 2 = - 4 ⇔ D ∉ courbe
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bonjour
f(x ) = 0.5 x - 2
1. coefficient directeur = 0.5
ordonnée = - 2
2. traçage
3 f (0) = - 2
3. f (2) = 1 - 2 = - 1 ⇔ A ∈ courbe
f (4) = 2 - 2 = 0 ⇔ B ∉ courbe
f( - 2 ) = - 1 - 2 = - 3 ⇔ C ∈ courbe
f ( - 4 ) = -2 - 2 = - 4 ⇔ D ∉ courbe