Question

You run an electronic store and want to know how the quantity of TVs you sell...

You run an electronic store and want to know how the quantity of TVs you sell depends on the price you charge per TV

Determine whether the two variables are related in a way that might be described by a function. If the situation could be described as a​ function, then identify the independent and dependent variables. Choose the correct answer below. A. The situation can be described by a function. The dependent variable is the price and the independent variable is the TVs sold. B. The situation can be described by a function. There is a dependent​ variable, but no independent variable. The dependent variable is TVs sold. C. The situation cannot be described by a function. D. The situation can be described by a function. The dependent variable is the TVs sold and the independent variable is the price.

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Answer #1

We are given that the quantity of TVs we sell depends on the price we charge per TV. Let c be the charge per TV, and if we increase the charge per TV, may vary. Therefore, the dependent variable is the TVs sold and it depends on the  price we charge per TV, which indicate the independent variable .

Hence, sell S depends on the  price c charge per TV and therefore S can be expressed as a function of c.

Therefore, option

D. The situation can be described by a function. The dependent variable is the TVs sold and the independent variable is the price.

is correct.

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