Figure 1: Scatter plot showing an outcome variable (blood pressure) on the y-axis and explanatory variable (age) on the x-axis, with regression line through the plots. Credit: Technology Networks.

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. STEP 1 - Draw ...

Linear equations can be shown on a graph. Find out how to create one in ... WATCH: How to construct a parabola A simple, step-by-step guide on how to construct a parabola from coins, aimed at ...