bonjour
f (3) = 5
f (x) = 5 x /3
f ( 6) = 5
f (x) = 5 x /6
g ( - 4 ) = 8/7
g (x) = 8/4 * - 1/4 = - 8 x / 16 = - x /2
h ( 2/3) = 5
h (x) = 5 * 3/2 = 15 x /2
salaire annuel 12 000 15 000 18 000 21 000
prime 1 000 1 250 1 500 1 750
revenu total 13 000 16 250 19 500 22 750
la prime représente 1/12 du salaire