Question

How do you find the slope of a line perpendicular to the line passing through the given two points (0, 0) and (2, -9)?

Answer 1

`color(violet)("Slope of perpendicular line "m_p = -1 / m = 9/2`

Explanation:

Slope of the given line `m = (y_2 - y_1) / (x_2 - x_1)`

`(x_1, y_1) = (0,0), (x_2, y_2) = (2, -9)`

`m = (-9-0) / (2-0) = -9/2`

Slope of perpendicular line `m_p = -1 / m = -1 / (-2/9) = 9/2`