Question: Suppose the length of a rectangle is twice its width. Let x represent the width of the rectangle. Write a formula for the perimeter P

Suppose the length of a rectangle is twice its width. Let x represent the width of the rectangle. Write a formula for the perimeter P of the rectangle in terms of x alone. Then use P(x) notation to describe it as a function. What type of function is this?

Suppose the length of a rectangle is twice its width.

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