First solve the equation by dividing 5 on both sides...
Y = 5\2x + 2
Now we want perpendicular and the line to flip across the axis so the answer is....
Y = -2\5 + 2
I would say go with with B
the factors of 100 are: 1, 2, 4, 5, 10, 20, 25, 50, and 100
12x1
12x2
12x3
12x4
12x5
12x6
12x7
12x8
12x9
12x10