What is the least possible degree of a polynomial that has roots -5,1+4i, and -4i?

Graph the equation by plotting point x=2

Consider the functions below. function 1 function 2 function 3 select the statement which is true about the functions over the interval [1, 2] a b function 3 has the highest average rate of change function 2 and function 3 have the same average rate of change. function and function 3 have the same average rate of change function 2 has the lowest average rate of change d.

Would greatly appreciate these 3 answers