填空题 .Algebra Figure that follows shows right triangle PQR in the xy-plane. Find the following.

填空题 1. The coordinates of point Q

填空题 2. The lengths of line segment PQ, line segment QR, and line segment PR

填空题 3. The perimeter of triangle PQR

填空题 4. The area of triangle PQR

填空题 5. The slope, y-intercept, and equation of the line passing through points P and R