Write an equation of the line in slope-intercept form that passes through each pair of points.
a) (-2, -1) and (5, 13)
b) (0, -3) and (5,-5)

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?