Cevap:
A) -7
Adım adım açıklama:
[tex]f^{-1}(3)=4 => f(4)=3\\f^{-1}(2)=5 => f(5)=2\\\\f(x)=ax+b\\\\f(4)=4a+b = 3\\f(5)=5a+b = 2\\\\4a+b=3\\5a+b=2\\\\+ ---------\\\\-4a-b=-3\\5a+b=2\\\\+ ---------\\\\a=-1\\b=7\\\\a.b=(-1).7= -7[/tex]
