Presenter 1: Use a line graph when both variables use numbers and they are continuous. This means the numbers can take any value. Presenter 2: When drawing a line graph, we use SALT, which stands ...

Vertical lines have equations of the form \(x = k\). Horizontal lines have equations of the form \(y = c\). Draw the graph of \(x = 3\). Mark some points on a grid which have an \(x\)-coordinate ...

Figure 1: A Graph showing grades achieved against the time spent on ... I’m sure most of us have experience in drawing lines of best fit, where we line up a ruler, think “this seems about right”, and ...