BBC1 年
Perpendicular lines - Intermediate and Higher tier
To determine if two lines are perpendicular, we need to multiply their gradients together. If the lines are perpendicular to each other, the product of their gradients will be -1. We say \({M_{1} ...
BBC5 年
Parallel and perpendicular lines
Parallel lines are a fixed distance apart and will never meet, no matter how long they are extended. Lines that are parallel have the same gradient. The graphs above, \(y = 2x + 1\) and \(y = 2x ...