CN = NP = AM = x
AN = AC - CN = 4 - x
Surface f(x) = AM · AN = x (4 - x) = 4x - x2
Si x = 0, f(x) = 0
Si x = 0.5, f (x) = 2 - 0.25 = 1.75
Si x = 1 , f(x) = 4 - 1 = 3
Si x = 1.5 , f(x) = 6 - 2.25 = 3.75
Si x = 2 , f(x) = 8 - 4 = 4
Si x = 2.5, f(x) = 10 - 6.25 = 3.75.
Calcule les autres valeurs.