For example, the perpendicular gradient to 1 over 8 would be –8, and the perpendicular gradient to –5 over 4 would be 4 over 5. This also means the gradients of perpendicular lines always ...

Looking through a window on a rainy day may generate feelings other than melancholy. Curiosity, for example: isn't it remarkable that water droplets stick to the pane rather than sliding down?

Parallel close parallel Parallel lines are always the same distance apart. They never meet. lines have the same gradient close gradient A measure of the slope of a line.. Higher - Perpendicular ...