In the graph above, the cordinates of the vertices of quadrilateral qprs are q(2,4), p(2,4), r(3,1), and s(1,1). if quadrilateral qprs is reflected across the x-axis to create quadrilateral ghij l, find tge coordinates of point j

In the following graph, the coordinates of the vertices of quadrilateral QPRS are Q(2,4), P(4,4), R(3,1), and S(1,1). If quadrilateral QPRS is reflected across the x-axis to create quadrilateral GHIJ l, these coordinates are G(1,-1), H(3,-1) , I(2,-4) and J(4,-4). 

Ithink the answer would be knew