Answer:
-7, 9.
Step-by-step explanation:
-First, we have to locate (1, 9) as 1 and 9 are positive numbers, we have to locate it to a quadrant that is positive (quadrant 1).
-Second, we have to draw or have a web where you have the coordinate plane to locate (1, 9). The x-coordinate always comes first, followed by the y-coordinate.
-Third, after you located (1, 9), then you go 8 units down. 1 is coordinate x and 9 coordinate y.
-Fourth, know you have the answer: -7, 9.
-Hope this helps.
