Algebra is the branch of mathematics that focuses on formulas, and one of its key concepts is the representation of linear equations, which describe straight lines. Among the various forms you can ...

In order to work with gradients and straight lines successfully ... Architects have to understand gradient to work out the slope of a roof. There are rules and regulations for how steep a roof ...

Any line with a gradient of 3 will be parallel to \(y = 3x + 7\). Two examples are \(y = 3x - 2\) and \(y = 3x + 11.6\). Find the equation of a straight line that is perpendicular to \(y = 2x + 1\).