Still don't understand this please help

What term makes it inconsistent y=2x - 4

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?

One positive integer is 2 less than another. the product of the two integers is 24. what are the integers