Microsoft Word includes some basic drawing tools that allow you to embed shapes and graphs in your documents. Drawing a concentric circle chart, for example, involves using the shape tools in Word to ...

Proportional symbols can be added to graphs to show information about different places. The graph below plots life expectancy against income for each country. It also shows population size. Each ...

As a tangent is a straight line it is described by an equation in the form \(y - b = m(x - a)\). You need both a point and the gradient to find its equation. You are usually given the point - it's ...