Which is the best estimate for the average rate of change for the quadratic function graph on the interval 0 ≤ x ≤ 8?

Given right triangle xyz, which correctly describes the locations of the sides in relation to

The center of a circle represent by the equation (x+9)^2+(y-6)^2=10^2 (-9,6), (-6,9), (6,-9) ,(9,-6)

The point of intersection of the diagonals of a rectangle is 4 cm further away from the smaller side then from the larger side of the rectangle. the perimeter of the rectangle is equal to 56 cm. find the lengths of the sides of the rectangle. 16 points answer quick