If you understand the definition of a mathematical function, a good way to judge it is that any line ... a scatter plot, whether you use it simply with marking points or lines, the graph is ...

All quadratic functions have the same ... equation to 1 decimal place. Draw and complete a table of values to find coordinates of points on the graph. Plot these points and join them with a ...

The points lie on the vertical line \(x = 3\). If you recognise that the equation is that of a straight line graph, then it is not actually necessary to create a table of values. Just two points ...