SECTION B: SHORT/ CODE-BASED QUESTIONS (20 MARKS) Note: Ensure you show your formulars and working. Also, note that you can represent the following symbols as follows: ^ for the exponent symbol, x^2 Instead of x; 22as 2^2; division as / or + ; + individually as + or - ; vb as square root of b. Any other symbol that you find difficult can be typed out in words 2.1 Find the equation of a line that passes through points (2,1) and (-5,-6) 2.2 Calculate the distance between two points, (3,4) and (-2,-7) 2.3 Evaluate the limit lim (2x- + 1) 2.4 Differentiate y = 5Vx - 3x 2.5 Find S(2xi + =)dx (4)