bonjour
f (x) = x /2 + 1
f ( - 6 ) = - 6 /2 + 1 = - 3 + 1 = - 2
f ( - 2 ) = - 2 /2 + 1 = - 1 + 1 = 0
f 0 ) = 1
f ( 4 ) = 4/2 + 1 = 2 + 1 = 3
2 points suffisent pour tracer une courbe
