Hurry. which expressions can be used to find the coordinates of the midpoint of pq with endpoints p(3, –1) and q(–7, –6)? check all that apply. ((3+7)/2) can be used to find the x-coordinate of the point. -6)/2) can be used to find the y-coordinate of the point. (–7 – 3) + 3 can be used to find the x-coordinate of the point. (–6 – 1) – 1 can be used to find the y-coordinate of the point. – 1 can be used to find the y-coordinate of the point.