Sagot :
Réponse :
bonsoir
f (- 2 ) = 5
f (x) = - 5 x /2
g (2 ) = 4 et g ( - 1 ) = - 2
( - 2 - 4 ) / ( - 1 - 2 ) = - 6 / - 3 = 2
ax = 2 x
g (2) = 4
2 * 2 + b = 4
b = 4 - 4 = 0
g (x) = 2 x + 0
A ( - 2 ) = 2 et B ( 1 ) = 7
( 7 - 2 ) / ( 1 + 2 ) = 5 /3
ax = 5 x /3
A ( - 2 ) = 2
- 2 * 5/3 + b = 2
- 10 /3 + b = 2
b = 2 + 10 /3 = 6/3 + 10/3 = 16 /3
h (x) = 5 x /3 + 16/3
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