Question

If line L is perpendicular to line m and the slope of line L is undefined, what is the slope of line m?

A.1

B.1/2

C.0

D.-1

Answer 1

Explanation:

mL = Undefined

mM = ?

mL × mM = -1

mM = -1 ÷ mL

mM = -1/mL

mM = -1/Undefined

mM = -1/(1/0)

mM = (-1 × 0)/1

mM = 0

Slope of line m is 0

Option → C