- Always label your axis
- depends if you need to put the arrows. If it is a continuous function you need to but if there is a restriced domain it should be an open/closed dot depending
- no you will not loose marks for not writing down the equation.
Will you lose marks in the hsc for not:
Labelling the x and y axis No.
Placing arrows on your plane and graph Depends on the continuity of the function.
Writing the equation next to the graph No.