The figure below shows the x-position of an object as a function of time.
(a) At which point does the object have the smallest non-zero speed?
(b) At which point does the object have the largest speed?
(c) At which point is the object at rest?
(d) At which point is the object moving to the left? 
Definitions:
U.S. Prices
A general term referring to the level of prices or cost of living in the United States, often assessed through indicators like the Consumer Price Index.
Vertical Axis
In a graph or chart, the y-axis along which numerical values are plotted to measure the outcome variable.
Price Level
The current mean cost of goods and services across the full economic production.
Money Demand
The desired holding of financial assets in the form of money, which varies inversely with the interest rate.
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