bonjour
f(x) = ax + b
ici a = (2-2) / (5-(-5) = 0
donc f(x) = b
et comme
f(5)= 5*0 + b = 2
on a b = 2
soit f(x) = 2
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bonjour
f(x) = ax + b
ici a = (2-2) / (5-(-5) = 0
donc f(x) = b
et comme
f(5)= 5*0 + b = 2
on a b = 2
soit f(x) = 2