prestotheboss prestotheboss 30-10-2020 Mathematics contestada 100 Points + Brainliest! I need the slops of these 3 coordinates! 1 What is the slope of line segment PQ with coordinates P(-2,5) and Q(-1, 1)? 2 What is the slope of line segment QR with coordinates Q(-1, 1) and R(7,3)? 3 What is the slope of line segment PR with coordinates P(-2, 5) and and R(7,3)?