Answer:
1/2×d1×d2
=1/2× (4+4)(6+3)
=36
slope = (y2-y1)/(x1-x2)
=(20-8)/(2-1)
=12/1
m = 12
multiply both sides by the reciprical of 5/3 so:
3/5(5/3)w=-10(3/5)
w=-30/5= -6