quadratic/cubic funtions expanation
I was given this question in math class
Quadratic functions may have two, one or no real zeros, but every cubic function must have at least one real zero. explain.
my problem is that i have a real hard time understanding HOW things work in math, and i can usually settle for just being able to use them.
Anyways, can someone try to explain this to me?
also given points on a graph of function P(x) (3,4) and also (6,0), how would i go about applying the transformation y=(x-6)P(x+3) the part i don't understand here is what to do with (x-6)