Answer:(x + 7, y - 4).
Explanation:
The coordinate notation for a translation of 7 units right and 4 units down is (x,y) -> (x + 7, y - 4). This transformation moves every point in the x-y plane 7 units to the right along the x-axis and 4 units down along the y-axis. So, for any point (x, y), the new point after the translation is (x + 7, y - 4).