Answer:
3/4
Step-by-step explanation:
(2,2) ; (-2,-1)
Slope = 

Answer:
x = -5/7
Step-by-step explanation:
8 1
---------- = ----------
x+3 x+1
Using cross products
8 (x+1) = 1 (x+3)
Distribute
8x+8 = x+3
Subtract x from each side
8x-x +8 = x-x+3
7x+8 =3
Subtract 8 from each side
7x +8-8 =3-8
7x = -5
Divide each side by 7
7x/7 = -5/7
x = -5/7
(2w-8)+2L because there are 2 sides for the width 2*4=8 so 2w -8 plus 2L