Answer:
B
Step-by-step explanation:
sorry if its wrong
Answer:
The bottom left one
Step-by-step explanation:
They are the only graph that has one output for each x value
The coordinates of the midpoint if the endpoints are (x₁,y₁) and (x₂,y₂):

One endpoint is (3,5), the midpoint is (5,-11). The other endpoint is (x,y).

The coordinates of endpoint M are (7,-27).