What are the conditions of a function to be continuous? Is the following function continuous? Use these examples to illustrate your answer. (Also check whether the limit exists or not) i) y=f(x)=(x²- 9x+ 20)/(x-4) (ii) P(x){ = x² +1 ifx≤ 2 [12] (limit when x4 and check continuity at x=4) (check continuity at x=2) { = 2x + 1 if x>2