If f(x)=ax+53x−bf(x) = \frac{ax+5}{3x-b}f(x)=3x−bax+5 is its own inverse, what can be said about aaa and bbb?
a=ba = ba=b
a=−ba = -ba=−b
a=3,b=5a = 3, b = 5a=3,b=5
a=−3,b=5a = -3, b = 5a=−3,b=5