PLEASE HELP ME What is the domain and range? What values is this function increasing? Which values are decreasing? Is this function continuous or discontinuous?

Find the constant of variation for the relation and use it to write an equation for the statement. then solve the equation.

Write an algebraic expression to match each statement a. four less than 8 times a number b. twice the difference of a number and six c. nine from a number squared

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?