Question: The function represents the number N of housing units (in millions) that have r rooms, where r is an integer and 2 ¤ r ¤

The function

= -1.44r2 + 14.52r – 14.96


represents the number N of housing units (in millions) that have r rooms, where r is an integer and 2 ‰¤ r ‰¤ 9.

(a) Identify the dependent and independent variables.

(b) Evaluate N(3). Provide a verbal explanation of the meaning of N(3).

= -1.44r2 + 14.52r 14.96

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