The slope of the line passing through the points (3, -2) and (3, -4) is

1. -2

2. 0

3. 1

4. not defined

Slope of the line passing through (x₁, y₁) and (x₂, y₂) is given by,

$= \dfrac{y$2 - y1}{x2 - x1} \\[1em] = \dfrac{-4 - (-2)}{3 - 3} \\[1em] = \dfrac{-4 + 2}{0} \\[1em] = -\dfrac{-2}{0} \\[1em]

= not defined.

Hence, Option 4 is the correct option.