If f(x) = (x - 3)/|x - 3| + a for x 3 is continuous at x = 3, then the value of a - b is:

Let f(x) = ax(x-1) for x 3. If f(x) is continuous for all x, not differentiable at x = 1, and f'(x) is continuous at x = 3, what is the value of q?

Let f(x) = ax(x-1) for x 3. If f(x) is continuous for all x, not differentiable at x = 1, and f'(x) is continuous at x = 3, what is the value of p?