Question

How do you find the slope of the line that passes through (a,2), (a,-2)?

Answer 1

`"Undefined."`

Explanation:

Observing that the abscissa, i.e., the `x` -co-ords., of the

given two points are same, thr line passing thro. them must be

Vertical, i.e., parallel to the `Y`- Axis.

The Slopes of such lines are Undefined.