The avarage number of gallons W of bottle of water consumed each year by the consumer can be approximated by W=1.5d+17.85, where d is the number of years since 200.(A) find the avaerge number of gallons of bottle of water consumed in 2001 (d=1), in 2001 and 2015

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Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.