WEBVTT
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he excludes the one you radio. So for part
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A, we have two interpretations. The 1st 1
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which is up 20 equals 10,000 says that if the
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price is$20 in 10,000 units will be sold for
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the derivative of 20 equals Negative. 3 50 means
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that increasing the selling price by$1 will decrease sails
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by 350 units. For Part B. We're going
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to do a calculation. So first we're going to
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have our of P equal. P times are 50
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. We differentiate our we get P terms, the
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derivative of of P less one times of p.
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We plug in 20 when we get the derivative of
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20 equal to 20 times negative 3 50 plus one
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terms, 10,000 just equal to 300 3000 excusable.
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And since it's positive means that increasing the selling price
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will increase the revenue