Answer:
right towards positive x axis
Step-by-step explanation:
In order to find the orientation of the parabolas we can follow following steps.
1. if in the equation x is squared , the parabola opens up. Also if its coefficient is negative it opens down.
2. If y is squared , the parabola opens right , and its coefficient is negative , it opens left
but before that we have to convert our function in standard form of the parabola. Our equation is
[tex]y=\sqrt{x-4}[/tex]
hence we square on both sides
[tex]y^2=x-4[/tex]
which is now into one of the standard form of a parabola. here y is squared and its coefficient is not negative hence it opens towards right.