1) (5 points) The y-axis intercept of the supply curve is 80 and the slope is 8. The equation of the supply curve _ (in terms of P (price) and Qs (quantity supply)). The y-axis intercept of the demand curve is 280 and the slope is-2. The equation of the demand curve is (in terms of P (price) and Qo (quantity demand)). Given the demand and supply equations determine the Equilibrium quantity in the above market.

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Beverley SmithLv2

1 Mar 2018

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For the next three questions, be sure to draw out the figure yourself on scratch paper. It will help you get the correct answers. The equation for the demand curve is D = 100 - P. That means that the intercept on the price axis is 100, and the intercept on the quantity axis is also 100. The slope of the demand curve is -1. The equation for the supply curve is S = 9*P. That means that the supply curve begins at the origin, and increases with a slope of 9. For example, if the price is $1, the quantity supplied is 9. If the price is $20, the quantity supplied is 180. If you draw these curves you will notice that the intersection of supply and demand occurs at a price of $10 and a quantity of 90. That is the market equilibrium. We will call it the autarkic equilibrium in this market. For this question, what is the consumer surplus? There is no need to put a dollar sign in your answer. Just write the number.

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31) The y-axis intercept of the supply curve is 40 and the slope is 6. The equation of the supply curve is A) Qs = 40 + 6P B) P= 40 - 6Qs C) P= 3 + 4025 D) P = 40 +6Qs E) Qs= 40 - 6P

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