A linear equation is drawn as a straight line on a set of axes. To draw the graph we need coordinates. We generate these coordinates by substituting values into the linear equation.

To do this, begin by writing your equation. For example: y=x+3 or y=sin (x)+cos (2x). Next, use Lasso tool to select the equation and then, on the Draw tab, click the Math button. Now, from the ...

Revise how to recognise and determine the equation of a quadratic function from its graph. BBC Bitesize Scotland revision for SQA National 5 Maths.