Question

What function's domain consists of all real numbers greater than 3

A): f(x) =3x
B): f(x) =square root x
C): f(x)= 3x+4
D): F(x) = 1/square root x-3

Answer 1

The PLATO answer is f(x) = 3/x-3.

Reason: You can't divide by zero.

Hope this helps!