If an equation can be rearranged into the form \(y = mx + c\), then its graph will be a straight line. In the above: \(x + y = 3\) can be rearranged as \(y = 3 – x\) (which can be re-written as ...

Draw the graph of \(y = 3x - 1\). If you recognise this as a straight line then just choose two ‘easy’ values of \(x\), work out the corresponding values of \(y\) and plot those points.

The answer to two down in the Nov. 11 New York Times Mini Crossword is “XAXIS.” A typical two-dimensional graph has two axes: the x-axis (horizontal) and the y-axis (vertical). The x-axis runs ...