Positive slope and negative slope.
Explanation of Solution
Graphs B and D have positive slopes. This is because in graph B, long-term
Graphs A and C have negative slopes. This is because graph A shows the demand curve of oil, which shows decrease in the quantity demanded of oil with increase in price. In graph C,
Concept Introduction:
Slope: A slope is the value that makes a variation in the dependent variable by making one unit change in the independent value.
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Chapter A Solutions
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