Could someone please help me with this problem

lease state all definitions and theorems that you will need: Let f be a function defined on an interval I . We say that f is strictly increasing if 21 2 in I implies that f(x1) f(x2) Prove the following. lecraacing 2. If f is strictly increasing and if f(I) is an interval, then f is continuous. Furthermore, f - is a strictly increasing continuous function on f(I). Ler f be a function defined on an interval I We say that of is strictly increasing if x,