bonsoir
il faut calculer des images
f (x) = 4x - 1.5
f ( 0 ) = - 1.5
f ( 1) = 4 - 1.5 = 2.5
courbe noire
g (x) = - 4 x - 1.5
g ( 0 ) = - 1.5
g ( - 1 ) = - 4 * -1 - 1.5 = 4 - 1.5 = 2.5
courbe verte
h (x) = - 4 x + 1.5
h ( 0 ) = 1.5
h (1) = - 4 + 1.5 = -2.5
courbe rouge
i (x) = 4 x + 1.5
i ( 0)= 1.5
i (0.5 ) = 2 + 1.5 = 3.5
courbe bleu ciel
j (x) = 1.5 x + 4
j ( 0) = 4
j ( - 0.5 ) = - 0.75 + 4 = 3.25
courbe orange
k (x) = 1.5 x - 4
k (0) = - 4
k (2 ) = 3 - 4 = - 1
courbe grise
m (x) = - 1.5 x - 4
m ( 0 ) = - 4
m ( - 2 ) = 3 - 4 = - 1
courbe bleu vif
bonne soirée
