SOLUTION: Hello, Any help with these algebra II questions would be greatly appreciated. I have been working on this for several days and am getting nowhere..... 1. In this problem, w

Question 172490: Hello,
Any help with these algebra II questions would be greatly appreciated. I have been working on this for several days and am getting nowhere.....

1. In this problem, we will analyze the profit found for sales of decorative tiles. A demand equation (sometimes called a demand curve) shows how much money people would pay for a product depending on how much of that product is available on the open market. Often, the demand equation is found empirically (through experiment, or market research).

a. Suppose that a market research company finds that at a price of p = $20, they would sell x = 42 tiles each month. If they lower the price to p = $10, then more people would purchase the tile, and they can expect to sell x = 52 tiles in a month�s time. Find the equation of the line for the demand equation. Write your answer in the form p = mx + b. (Hint: Write an equation using two points in the form (x,p)).

A company�s revenue is the amount of money that comes in from sales, before business costs are subtracted. For a single product, you can find the revenue by multiplying the quantity of the product sold, x, by the demand equation, p.

b. Substitute the result you found from part a into the equation R = xp to find the revenue equation. Provide your answer in simplified form.

The costs of doing business for a company can be found by adding fixed costs, such as rent, insurance, and wages, and variable costs, which are the costs to purchase the product you are selling. The portion of the company�s fixed costs allotted to this product is $300, and the supplier�s cost for a set of tile is $6 each. Let x represent the number of tile sets.

c. If b represents a fixed cost, what value would represent b?

d. Find the cost equation for the tile. Write your answer in the form C = mx + b.

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
The following problem was answered yesterday. I think it relates
to your problem.
Cheers,
Stan H.
===========================================
Suppose that a market research company finds that at a price of p = $20, they would sell x = 42 tiles each month. If they lower the price to p = $10, then more people would purchase the tile, and they can expect to sell x = 52 tiles in a month�s time. Find the equation of the line for the demand equation. Write your answer in the form p = mx + b. (Hint: Write an equation using two points in the form (x,p)).
---------------
You have two points: (42,20) and (52,10)
slope = (10-20)/(52-42) = -1
-----------
intercept: p = mx + b; solve for "b" as follows:
20 = -1(42) + b
b = 20 + 42
b = 62
----------------
EQUATION:
p = -x + 104
======================
Cheers,
Stan H.

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