The answer is (6, -8). You add 8 to the x coordinate of vertex L and subtract 3 from its y coordinate.
3 yards per second is 9 feet per second, which is 9*60*60=32400 feet per hour. This is 32400/5280=6.14 miles per hour.
Answer:
x=-3
Y=-5
Step-by-step explanation:
2x-y=-1 ×2
3x-2y=1. ×1
4x-2y= -2
3x-2y=1
eliminate y by subtracting