fonction.py

Created on September 25, 2022

458 Bytes

f(x)=5x+10 affine
f(x)=-2x+69 affine
f(x)=3x linéaire

sens de variation
a sup a 0= augmente
a inf a 0= diminue

quand il n'y a pas de solution le
trinome est du signe de a + -b/2a

1 ax**2+bx+c=0
2 a= b= c=
3 delta=b**2-4ac si a sup 0
4 x1=(-b-sqrt delta)/2a
4 x2=(-b+sqrt delta)/2a
5 x1+x2=c/a

representation graphique est parabole
dont le sommet a pour abscisse -b/2a


delta sup a 0 x1 x2
delta=0 x0=-b/2a
delta inf a 0 pas de solution

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