For H2 A level mathematics, JC students seems to have difficulty in memorising the equations of asymptotes. However the GC can calculate them for you (in a way).
Step 1: Go to APPS –> CONICS –> HYPERBOLA
Suppose we want to sketch the graph
If the questions are set such that the values are not “nice”, e.g. including surds then the G.C will be unable to give the values in exact form.