Parallel and Perpendicular LinesFinding the Negative Reciprocal:

Examples:

1) Find the negative reciprocal of 2.

2) Find the negative reciprocal of78

Unit 3 Day 2 Notes

Example:3). For the line that runs through the two points (6, 3) and (4, 6) find the slope of a line parallel and the slope of a line perpendicular to the given line.

Finding Parallel & Perpendicular Slope:

Determining if Two Lines are Parallel & Perpendicular:

Example:4). Determine if the following two lines are parallel, perpendicular or neither.

3y - x = 12 and y = -3x + 1

Writing Parallel and Perpendicular Lines:

5). Write the equation of the line that passes through point (2, 4) and is parallel to the line

.2 2y x �

Examples:

6). Write the equation of the line that passes through point (6, 5) and is perpendicular to the line -6x - 2y = 12.