Question

What is the domain of the function f(x) = x+1/2x-1?

Answer 1

well there is a restriction in the domain, caused by the denominator

the domain is all real x except where

2x - 1 = 0

so you need to calculate the restriction...

remember, zero denominators are undefined..

Answer 2

so it'd be all real numbers except -1?

Answer 3

nope... what value does x take if

2x - 1 = 0

and its not -1

just solve the equation for x

Answer 4

x = 1/2?

Answer 5

that's the restriction