Sorry if the picture is blurry

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.

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?

Another type of subtraction equation is 16-b=7. explain how you would sole this equation then solve it.