1. The problem statement, all variables and given/known data determine the constants a,b,c, and d so that the function f(x)=ax^3+bx^2+cx+d has its first derivative equal to 4 at the point (1,0) and its second derivative equal to 5 at the point (2,4) 2. Relevant equations 3. The attempt at a solution I found the first and second derivative f'(x)=3ax^2+2bx+c f''(x)=6ax+2b I set 5=12a+2b I also set 4=3a+2b+c I get stuck trying to find the two different variables when working with the second derivative first. I know I have to substitute for the unknowns, but I don't know where to start.