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leaclem59400

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Flamme12

bonjour

f ( 5) = 6 et f ( - 3 )= - 10

( -10 - 6 ) : ( - 3 - 5 ) = - 16 / - 8 = 2

ax = 2 x

f (5) = 6

5 * 2 + b = 6

b = 6 - 10 = - 4

f (x) = 2 x - 4

f ( - 3 ) = 2 *-3 - 4 = - 6 - 4 = - 10

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