Slope is rise over run. It would have infinite rise over 0 run, but you can't divide by 0, making it an undefined slope.
<em><u>Answer:</u></em>
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<em><u>Explanation:</u></em>
<em><u>This protective tariff helped American industry by raising the prices of British manufactured goods, which were often cheaper and of higher quality than those produced in the U.S. This raised prices for Southern consumers and caused John Calhoun to oppose the tariff.</u></em>
