Question

Determine which one of the following options are correct.

f(x)=(x+1)/(x-1)

a) is a injective function only
b) is injective ans surjective
c) either injective nor surjective Determine which one of the following options are correct.

f(x)=(x+1)/(x-1)

a) is a injective function only
b) is injective ans surjective
c) either injective nor surjective @Mathematics

Answer 1

b)

Answer 2

sorry its injectiuve only

Answer 3

Thanks

Answer 4

Can you teach me how to recognize when a function is injective?