For E:

(-3,2) (-3,-5) x=-3

(-3,2)(3,6) 2/3(x+3)=y-6

(-3,-1)(1,-1) y=-1

(-3,-5)(4,-6) -1/7(x+5)=y+6

For B:

(-5,-7)(-4,-15) -8/1(x+7)=y+15

(-5,-7)(2,-8) -1/7(x+7)=y+8

(2,-8)(1,-10) 2/1(x+8)=y+10

(1,-10)(-4,-11) -10.2=b, -10=1/5(1)+b

(-4,-11)(3,-12) -1/7(x+4)=y+11

(3,-12)(4,-13) -1/1(x-3)=y+12

(4,13)(-4,-15) 4(x-4)=y+13