A linear equation is drawn as a straight line on a set of axes. To draw the graph we need coordinates ... Often a table of values is used to create the coordinates. We use substitution to ...

Any straight line graph has a constant ... the intercept, to create a straight line. Substitute the gradient of 3 in place of 𝑚 in the equation 𝑦 = 𝑚𝑥 + 𝑐 to give 𝑦 = 3𝑥 ...