Verified answer

bonsoir

f(x) = 3 x + 6

f (0 ) =  6  donc courbe verte

g(x) = 0.5 x - 1

g(0) = - 1 donc courbe violette

h(x) = - x + 2

h (0) = 2  donc courbe bleue

point d'intersection  ( - 1 : 3 )

- x + 2 = 3 x + 6

- 4 x = 4

x = - 1

0.5 x - 1 < - x + 2

0.5 x + x < 2 + 1

1.5 x < 3

x < 2