Let a=(-6,7), b=(-4,11), and c=(-2.10) be three points in the coordinate plane (a) verify that the three points form a right triangle, and identify the point at the vertex where the right angle is. (make sure to provide thorough explanation/work to justify your answer.) lletres (1) determine the equation of the line on which the hypotenuse of the right triangle lles. (e) determine the coordinates of the midpoint of the hypotenuse.