The Amount in Dollars, A, Spent Weekly by a Household

question 72

Multiple Choice

The amount in dollars, A, spent weekly by a household on food is a function of the household's weekly income in dollars, I, and the number of people in the household, n. Thus, . If A_I (1000, 4) = a > 0, then which of the following is true?

• A)At a weekly income of $1000 and a household size of 4, an increase of 1 person in the household produces a decrease of $a in the amount spent weekly on food.
• B)At a weekly income of $1000 and a household size of 4, an increase of $1 in weekly income produces a decrease of $a in the amount spent weekly on food.
• C)At a weekly income of $1000 and a household size of 4, an increase of 1 person in the household produces an increase of $a in the amount spent weekly on food.
• D)At a weekly income of $1000 and a household size of 4, an increase of $1 in weekly income produces an increase of $a in the amount spent weekly on food.

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Definitions:

Blood Vessel

Tubular structures carrying blood through the tissues and organs; a vein, artery, or capillary.

Constrict

To constrict means to narrow or become tighter, often referring to the reduction in diameter of blood vessels or other tubular structures in the body.

Splanchnic Nerve

Nerves that innervate the viscera, transmitting information to and from the visceral organs to the central nervous system.

Sympathetic Chain

A part of the autonomic nervous system consisting of a series of ganglia that run alongside the spinal column and influence internal organs by releasing neurotransmitters.