Whats the answer i have no idea and i'm really having a hard time

In the diagram below what is the approximate length of the minor arc ab

Place the following steps in order to complete the square and solve the quadratic equation,

Choose the linear inequality that describes the graph. the gray area represents the shaded region. a: y ≤ –4x – 2 b: y > –4x – 2 c: y ≥ –4x – 2 d: y < 4x – 2