Question

For the graph Y equals 1 find slope of a line that is perpendicular to it in the slope of a line parallel to it

Answer 1

The answer is Undefined (∞).

Explanation:

The line y = 1 has a slope of 0, and the line parallel to it, for instance, y = 3, has the same slope, m1 = 0. For the slope of the line perpendicular to that parallel line is m2 = -1/m1, which is -1/0 = ∞