Y’all please I’m boutta fail

Complete the equation of the live through (-1,6) (7,-2)

Which graph represents the linear function below? y-3=1/2(x+2)

Aclothing designer is selecting models to walk the runway for her fashion show. the clothes she designed require each model’s height to be no more than y inches from 5 feet 10 inches, or 70 inches. which graph could be used to determine the possible variance levels that would result in an acceptable height, x?