Parallel and Perpendicular Lines
- Dr. Doug Davis, 3D
- Straight Lines
Draws a green dash dot line parallel or perpendicular to a blue line. The blue line is controlled by the points A and B which can be freely moved. The green line is positioned with the point C. Clicking the button will switch the green line between parallel and perpendicular . The corresponding equations in slope intercept form are shown. A check box allows you to also show the slope of each line.