Question

Which of the following equations represents the line that passes through the point (1, –1) and is perpendicular to the line below?

Answer 1

The graph of the line would be y + 1 = m(x - 1) in which m is the slope. That slope would be the opposite and reciprocal of the one on the graph.

Explanation:

To find the equation, start with the base form of point slope form and insert all known information.

y - y1 = m(x - x1)

y + 1 = m(x - 1)