Fthe function f(y) = n models the number, n, of inches a tree grows in a year, y, which describes an appropriate domain for the function? a) all integers where y > 0 b) all integers where y ≥ 0 c) all rational numbers where y > 0 d) all rational numbers where y ≥ 0

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The complete question is

If the function f(y) = n models the number of inches a tree grows in a (y) year, which describes an appropriate domain for the function?

A) all integers where y > 0

B) all integers where y ≥ 0

C) all rational numbers where y > 0

D) all rational numbers where y ≥ 0

It's important to notice that a function like has variable as independent, which means the domains is a y-variable set.

Now, we are talking about height, which must be modelated by a rational number, because heights can be decimals.

Therefore, an appropiate domain for this function is D) all rational numbers where y ≥ 0, because we must include positive numbers only, negative numbers don't make sense to this problem.

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