Neve chooses four toppings. Rule across from 4 on the x-axis until you meet the line, and then rule across to find the price. Rule across from £5.50 from the y-axis until you meet the line ...

Each term in a sequence has a position. The first term is in position 1, the second term is in position 2 and so on. Position to terms rules use algebra to work out what number is in a sequence if ...