Question

How do you find the slope of the line passing through the points (2,4) and (2,-4)?

Answer 1

undefined

Explanation:

The slope `m` of a line passing through points `(x_1, y_1)` and `(x_2, y_2)` is given by the formula:

`m = (Delta y)/(Delta x) = (y_2-y_1)/(x_2-x_1)`

In our example:

`m = ((-4)-4)/(2-2) = -8/0" "` which is undefined.

The result of division by `0` is (almost always) undefined.

So the slope is undefined.