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When graphing a linear equation that is written in the form y=mx+b, the variable m represents the y-intercept. assuming that b> 0, which of the following best describes how reversing the sign of b would affect the graph? a) the new line will be shifted down b units b) the new line will be shifted down b x 2 units c) the new line will be a perfect reflection across the x-axis d) the new line will be a perfect reflection across the y-axis

Which of these international trade concepts results in specialization and trade increases in total world output? a) absolute advantage b) balance of payments c) absolute advantage d) international tariffs

What kind of interaction is depicted in the image? a. intraspecific, direct b. intraspecific, indirect c. interspecific, direct d. interspecific, indirect e. invasion