For each graph identify the order of the polynomial- using

Question

Order of polynomials. The accompanying graphs depict pth-order polynomials for one independent variable.

(a) For each graph, identify the order of the polynomial.

(b) Using the parameters β₀, β₁, β₂, etc., write an appropriate model relating E(y) to x for each graph.

(c) The signs (+ or -) of many of the parameters in the models of part b can be determined by examining the graphs. Give the signs of those parameters that can be determined.