Why not see how much you know about this topic already? Then work through the page and see if you can beat your score. Parallel lines are the same distance apart from each other all the way along ...

More than 200 pages into “Parallel Lines,” Edward St. Aubyn’s second novel in an intellectually roving series about separated-at-birth twins and seemingly everyone they know, one exasperated character ...

Lines which are parallel have the same gradient. For example, \(\text{y = 2x + 1}\) and \(\text{y = 2x - 2}\) will be parallel because they both have a gradient of 2. We want to determine if the lines ...