A graph has a point that is either a maximum or a minimum. To the left of the point, the slope of relationship is positive. To the right of the point, the slope is negative

Is the point a maximum point or a minimum point? Be sure to draw a figure that supports your answer.


The point is a maximum point. Examine the figure above. The slope of a curved line at any point equals the slope of a straight line that touches the curved line at only that one point. Thus to the left of the maximum point, take point A. The slope of the straight line that touches the curved line at only point A is positive, so the slope of the relationship is positive. Similarly, take point B to the right of the maximum point. As the straight line shows, the slope of the relationship at point B is negative. Indeed, whenever there is a maximum point, the slope of the relationship to the left of the maximum is positive and the slope to the right is negative.

Economics

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In the monetary small open-economy model with a flexible exchange rate, an increase in the world real interest rate

A) increases domestic output and increases the nominal exchange rate, as long as real money demand is much more responsive to real income than to the real interest rate. B) increases domestic output and decreases the nominal exchange rate, as long as real money demand is much more responsive to real income than to the real interest rate. C) decreases domestic output and increases the nominal exchange rate, as long as real money demand is much more responsive to real income than to the real interest rate. D) decreases domestic output and decreases the nominal exchange rate, as long as real money demand is much more responsive to real income than to the real interest rate.

Economics

What are the effects of an increase in the minimum wage? Who would be most affected?

What will be an ideal response?

Economics

Increased levels of spending on imports:

a) Shift aggregate supply to the right b) Shift aggregate supply to the left c) Shift aggregate demand to the right d) Shift aggregate demand to the left

Economics

An investment with a large spread between possible payoffs will generally have:

A. a low expected return. B. a low value at risk. C. a high standard deviation. D. both a low expected return and a low value at risk.

Economics