bonjour
f (x) = 4 x - 3 = affine
g (x) = 5 -2 x = affine
h (x) = 4.5 x = linéaire
j (x) = 3 x² + 5 = affine mais particulière , fonction carrée
k (x) = - 4 = constante
l (x) = 1 /x non affine
m (x) = 4 x /9 = linéaire
n (x) = - 4 x + 7 = affine
p (x) = - 3 /x + 2 = affine avec x ≠ 0