Question

Find the slope of the line passing through each of the following pairs of points and draw the graph of the line.

(6, −7), (6, 1)

Answer 1

Answer: undefined; vertical line

Explanation:

To find the slope, you use the formula
`m=(y_2-y_1)/(x_2-x_1)`.

`m=(1-(-7))/(6-6) =(8)/(0)`

The slope is undefined because you cannot divide anything by 0.

The graph of the line is a vertical line at x=6. We know this because the points are both at x=6, with different y-values.