There's this question in my textbook that I can't seem to answer:

A cubic function of the form y=ax^3+bx^2+cx+d passes through the points (0,1) (1,3) (-1,-1), (2,11). Find the values of a,b,c, and d.

These are seemingly random points. I don't understand how you could find an equation using them. Maybe I'm just being silly :confused: