bonjour
g (x) = 4 x /3
g ( 9/2 ) = 9/2 * 4 /3 = 36/6 = 6
4 x /3 = 5
4 x = 15
x = 15/4
f ( 4) = 120
f (x) = 120/4 = 30 x
f ( - 10) = 8
f (x) = - 8/10 = - 4 x /5
f ( 6) = 5
f (x) = 5 x / 6
g ( - 4 ) = 8/7
g ( x) = 8/7 * - 1/4 = - 8 x /28
h ( 2/3 ) = 5
h (x) = 5 * 3/2 = 15 x /2
