Let (x1, , , y3) be points with distinct x-values. prove there exists a polynomial p(x) of degree at most 2 passing through these points. state and prove a similar result for four points?

Asunflower was 20 1/2 inches tall. over the next 6 months, it grew to a height of 37 inches tall. what was the average yearly growth rate of the height of the sunflower? ? plz write a proportion to solve i will give you 100 points