Concept explainers
Demand for Steel The table below gives the world demand for steel, in millions of metric tons, for the years from 2010 to 2013.
Year |
World Demand for Steel (in millions of metric tons) |
2010 |
1301 |
2011 |
1381 |
2012 |
1409 |
2013 |
1455 |
Source: International Iron and Steel Institute
a) Plot these points on a graph.
b) Connect these points using line segments.
c) Determine the slope of each line segment.
d) During which period was rate of change the greatest?
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