Question

How do you state 2x-1>0 in interval notation?

Answer 1

first, solve for x..what do you have for x?

Answer 2

First divide both the sides by 2 .
Now let us assume that instead of inequality, there is the sign of equality in other word solve for x for such a value that the function is 0.
Now draw a number line
This implies that x is in \[(1/2,-\infty)\]

Answer 3

I think he means (1/2,∞) as 2x-1>0 if and only if x>1/2

Answer 4

I am sorry for the typo error it is from 1/2 to infinity