Graphs of the form \({y} = {c}\) and \({x} = {c}\), will either be a horizontal ... the equation of the line will be of the form \(y = …\). The equation of a straight line on a graph is made ...

If an equation can be rearranged into the form \(y = mx + c\), then its graph will be a straight line ... Vertical lines have equations of the form \(x = k\). Horizontal lines have equations ...