Fonctions Flashcards

1
Q

fonction affine

A

f(x)= ax+b

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2
Q

Dans fx = ax + b comment trouver a ?

A

a= Delta(y)/Delta(x) = f(x2)-f(x1)/x2-x1

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3
Q

Si b=0 alors :

A

F(x)= ax

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4
Q

Si a=0 alors :

A

f(x)= b et f est constante

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5
Q

Si a>0 alors :

A

f est croissante sur R et f(x1) < f(x2)

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6
Q

Si a<0 alors :

A

f est décroissante sur R et f(x1) > f(x2)

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