If greg exceeds the regular limit on his monthly cell phone plan, his cell phone provider charges him according to the duration of the calls. the graph shows how these call charges vary with the call duration.
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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?