Question

Use the given line below to answer parts 1 and 2. Include your work in your final answer. Type your answer in the box provided or use the upload option to submit your solution.
Part 1: Use the graph to count the slope of the line that passes through the points (2, 1) and (2, 0).

Part 2: In two or more complete sentences, explain why it is not possible to write the equation of the given line in the traditional version of the point-slope form of a line.

Answer 1

Since the line is vertical, its slope is "undefined."  This slope has no numerical value.

The point-slope form is y = mx + b.  In this particular problem, the slope, m, is undefined, and there is no y-intercept (the line never crosses the y-axis).