Answer :

It is given that f : R R defined by f (x) = 3 4x

Let x1, x2ϵ R such that f(x1) = f(x2)


3 4x1 = 3 4x2


-4x1 = -4x2


x1 = x2


f is one- one


For any real number (y) in R, there exist in R such that



f is onto.


Therefore, function f is bijective.


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