Question: Problems 7988 are based on previously learned material. The purpose of these problems is to keep the material fresh in your mind so that you

Problems 79–88 are based on previously learned material. The purpose of these problems is to keep the material fresh in your mind so that you are better prepared for later sections, a final exam, or subsequent courses such as calculus.

Suppose y varies directly with √x. Write a general formula to describe the variation if y = 2 when x = 9.

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If y varies directly with the square root of x we can write the variation equation as y kx ... View full answer

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