As the point is (8, 0)
(8, 0) $\leftrightarrow $ (x, y)
Here, x-coordinate is 8 which is greater than 0 and y-coordinate is 0, and when y-coordinate is 0, then the point lies on x–axis.
As the x-coordinate is greater than 0, the point (8, 0) lies on positive x–axis.