Enregistrer le coefficient directeur

f(x)=

Valeur de x0

Coefficient directeur de la tangente en x0

Courbe des nombres dérivés

f(x) = 1 / 2 * x^(2) + x
x_0 = -3.5 (slider from -5 to 5, step 0.25)
M: (x_0, f(x_0))
a = -0.8 (slider from -7 to 7, step 0.1)
g(x) = a * (x - x_0) + f(x_0)
choix = 1 (slider from 1 to 2, step 1)
ChampTexte1 = Textfield(f)
pas = 0.5
A = (-0.675, -7.0411954765751235)
B = (0.9749999999999999, -7.0411954765751235)
C = (-7.1139534883721085, 7.962068965517244)
Atrue = -1
Btrue = -1.9