uhh well 4 + 2 is 6- and it's in brackets so that's a start?
there's nothing between the brackets and the number
division: 3
multiplication: 12
addition: 8
subtraction: 4
expansion: 2(2+4) = 12
M= 1/2
to find this you plug in the points into the the formula m=y2-y1 / x2-x1
m=3-6 / -4-2
m=-3 / -6
this simplifies to m=1/2
I dont know the answer but heres an eagle for good luck