bonjour
f(x) = 1.4 x augmentation de 40%
g(x) = 0.8 x diminution de 20%
h (x ) = 1.025 augmentation de 2.5 %
i (x) = 0.625 x baisse de 37.5 %
j (x) = 3 x /4 = 0.75 x baisse de 25 %
l (x) = 3 x /2 = 1.5 x = augmentation de 50 %
a) jupe = 80 * 0.7 = 56 €
b ) p (x) = 0.7 x linéaire
