We need to reflect the given quadrilateral across the x-axis.
When we reflect a point across the x-axis, we need to negate the y-coordinate and leave the x-coordinate the same
The point of the given quadrilateral are:
(5,-2)
(2,-4)
(4,-8)
(7,-5)
When we reflect these points on the x-axis, the new points are:
(5,-(-2) = (5,2)
(2,-(-4)=(2,4)
(4,-(-8) =(4,8)
(7,-(-5)=(7,5)