bonsoir
f(2) = 0
f(3) = - 1/6
f(0) = 2/3
f(x) = - 3 x + 2
f(2) = - 3 (2) + 2 = - 6 + 2 = - 4
f( -3) = - 3 ( -3) + 2 = 9 + 2 = 11
f ( 1/6) = - 3 (1/6) + 2 = - 3/6 + 2 = - 3/6 + 12/6 = 9/6 = 3/2
f(√2) = - 3 (√2) + 2 = - 3 √2 + 2
- 3 x + 2 = 0
- 3 x = - 2
x = 2/3 ⇒ f(0) = 2/3