Which of These Functions Is One-To-One?
A) $f(x)=2 x^{3}-3 x$ B) F(x)=6x +14
C)

Multiple Choice

Which of these functions is one-to-one?

A) $f(x) =2 x^{3}-3 x$
B) f(x) =6x +14
C) $f(x) =\sqrt{x^{2}-3 x-2}$
D) $f(x) =5 x^{2}-x+3$
E) $f(x) =\frac{x^{2}+7}{x-1}$