Find the exact equation for the given graph. The point (-1, 5.5) is on the graph.

Ineed to learn how to solve this problem

Factorize: x^2+8x+10 i just solved it but i don't know if the process is correct

The clayton family’s pool has vertices at the coordinates (0, 2), (0, 5), (2, 5), (2, 6), (5, 6), (5, 1), (2, 1), and (2, 2). if each grid square has an area of 9 square feet, what is the area of the pool?