Demand Function (need help asap!)

[tatyanaa]

This is the problem:
A manufacturer sells 150 tables a month at the price of $200 each. For each $1 decrease in price, he can sell 25 more tables. Each table costs $125 to make.
The demand (price) function is assumed to be linear: p(x)=mx+b, where p is the price of each table and x is the amount of tables produced. Find the expression for the demand function.

 

[galactus]

Find the equation of a line given two points.

(150,200)

Because the function is linear and we are told that they sell 25 more tables for each dollar decrease in price,

The next point is (175,199)

Can you find the line equation from these two points?.

 

[Deleted member 4993]

This is the problem:
A manufacturer sells 150 tables a month at the price of $200 each. For each $1 decrease in price, he can sell 25 more tables. Each table costs $125 to make.
The demand (price) function is assumed to be linear: p(x)=mx+b, where p is the price of each table and x is the amount of tables produced. Find the expression for the demand function.

Multiple posts:

http://answers.yahoo.com/question/index ... 539AAmtlIe

http://www.enotes.com/math/q-and-a/how- ... nue-258447