The LCM (least common multiple) is the smallest positive whole number exactly divisible by two or more given whole numbers.
Equation of a line is given by y - y1 = m(x - x1); where m is thw slope.
y - (-2) = 0(x - 0)
y = -2
For perpendicular lines, m2 = -1/m1
so, m2 = -1 / -1/3 = 3
Therefore the slope of a line perpendicular to the line is 3.
B is the answer there is a common denominator y’a welcome
Yes because it cant be divided down anymore