About This Set
This set sits at the hard end of Tier 1 and the easy end of Tier 2: reflections in lines other than the axes, a triangle that has to be right-angled, regions cut off by two or three lines, and values of that come in pairs when only one of them may fit. Only the external division item is marked [Tier 2], and a Tier 1 candidate can leave it; the two distance questions (a point from a line, and two parallel lines) are Tier 1 work. A rough sketch before the working shows at once which region or which root is wanted. Give it 35 minutes or so; at 18 correct or better, turn to the real exam questions in the PYQ Practice Sets.