Hi, this is my first post, and I don't want to seem too desparate but I really need help with a problem that I have been unable to do (I've been working on it for close to 2 hours). If function f(x) is continuous and differentiable and f(x) = ax*x*x – 6x when x is less than or equal to 1 f(x) = bx*x + 4 when x is greater than 1 then a = ? (ax*x*x meaning a * x-cubed, etc.) Anyways, I know that I'm not supposed to ask for a full solution, but I have been unable to do this problem for a very long time, and any help is appreciated (even a full solution). Thanks for any help.