I will give brainly if correct!!Complete the equation describing how x
and y are related.

Answer:
y = -0.5x + -1
Step-by-step explanation:
Guy in the comments forgot to put the negative before 0.5 so make sure to put the negative symbol before 0.5.
Answer:
-0.5x-1
Step-by-step explanation:
calculate slope then use it to plugin