The quantity demanded x for a certain brand of MP3 players is 100 units when the unit price p is set at $90. The quantity demanded is 1100 units when the unit price is $40. Find the demand equation.

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Q: The quantity demanded x for a certain brand of MP3 players is 300 units when the unit price p is set…

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Q: The quantity demanded x for a certain brand of MP3 players is 300 units when the unit price p is set…

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A: We have to find the demand equation .

Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.