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Help me please.The price p(in dollars) and the quantity x sold of a certain product satisfy the deman equation x=-8p+400. Answer the following questions(f) choose the graph (g) what price should the company charge to earn at least 4200 in revenue?The company should charge a price between a minimum of ____$ and a max of _____$.

Help Me PleaseThe Price Pin Dollars And The Quantity X Sold Of A Certain Product Satisfy The Deman Equation X8p400 Answer The Following Questionsf Choose The Gr class=

Sagot :

We are given that the function of demand is given as:

[tex]x=-8p+400[/tex]

Where:

[tex]\begin{gathered} x=\text{ quantity demanded} \\ p=\text{ price} \end{gathered}[/tex]

The function of revenue is given by:

[tex]R=px=p\left(-8p+400\right)[/tex]

Applying the distributive law we get:

[tex]R=-8p^2+400p[/tex]

We get an equation of the form:

[tex]R=ap^2+bp+c[/tex]

This is a quadratic equation and its graph is a parabola.

If the value of "a" is negative this means that the parabola opens downwards, therefore, the possible answers are A or D.

We notice that A is the graph of p vs R. Since our equation is a function of "p" we need R vs P, therefore, the right answer must be D.

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