Hey, I'm in first year Uni so grade 11 wasn't that long ago I remember the big thing in grade 10 being quadratic equations --> know how to graph quadratics, solve them (solve them being find the roots --> points where x = 0), know how to do perfect square(or formula), and factoring . I'm pretty sure you also need to know basic trigonometry as well but I can't remember the exact details nor do I remember it being overly difficult.

Hope that helps, good luck