bonjour
f (x) = - 3 x + 2
f (1) = - 3 + 2 = - 1
f ( 0) = 2
f ( - 2 ) = - 2 * - 3 + 2 = 6 + 2 = 8
f ( 2/3 ) = - 3 *2/3 + 2 = - 6 /3 + 2 = - 2 + 2 = 0
