Two examples are \(y = 3x - 2\) and \(y = 3x + 11.6\). Find the equation of a straight line that is perpendicular to \(y = 2x + 1\). The gradient of \(y = 2x + 1\) is 2. The reciprocal of 2 is ...

The point of intersection of the perpendicular bisector and the original line is exactly halfway along the first line. If everything has been constructed correctly, the two lines will always meet ...