Answer:
B
Step-by-step explanation:
The given equation is :
[tex]y=\sqrt {x-4}[/tex]
This is a equation of a half parabola because general equation of a parabola with its as x-axis is:
[tex]y^2={x-a}[/tex]
Where a is the vertex of the parabola. If square root is taken, then there will be one positive and one negative. So,
The positive represents the upper side of the parabola.
Hence, [tex]y=\sqrt {x-4}[/tex] represents upper parabola with x -axis is its axis and vertex at (4,0). Option B is correct.
