Exercice 38, quelqu’un peut m’aider svp ??

bonsoir

g ( - 3 ) = 1 et g ( 2 ) = - 9

( - 9 - 1 ) / ( 2 + 3 ) = - 10 / 5 = - 2

ax = - 2 x

g ( - 3 ) = 1

- 2 * - 3 + b =  1

b = 1 - 6 = - 5

g (x) = - 2 x - 5

d'où  g ( 2 ) = - 4 - 5 = - 9

g ( - 5) =  10 - 5 = 5

g ( 1) = - 2  - 5 = - 7

g ( 6 ) = - 12 - 5 = - 17