The solutions of question 2 to 4

2. Find the intervals where each function is continuous. (a) f(x) = 72-5146 (b) g(x) = In(-2x + 10) 3. Show that the equation r4 - 13 - r = 5 has a least one solution between 0 and 2. 4. Find the derivative of each function using the definition of the derivative. (No marks will be given for the use of any differentiation rules.) (a) f(x) = 723 (b) g(x) = -6 2x+1 (c) g(x) = Ar-5