The change in water level of a lake is modeled by a polynomial function, w(x). describe how to find the x-intercepts of w(x) and how to construct a rough graph of w(x) so that the parks department can predict when there will be no change in the water level. you may create a sample polynomial to be used in your explanations.

Agroup of students want to create a garden. they do not know the exact measurements but they propose using a variable to represent the length and width of the garden. the length of the garden is 10 feet longer than double the width. use a single variable to write algebraic expressions for both the length and width of the garden. write an algebraic expression for the area of the garden. use mathematical terms to describe this expression.