Question: Hydroelectric power is electric power generated by the force of moving water. Figure shows the annual percent growth in hydroelectric power consumption by the US industrial sector between 2004 and 2009.
(a) Find the largest time interval over which the percentage growth in the US consumption of hydroelectric power was a decreasing function of time. Interpret what decreasing means, practically speaking, in this case.
(b) Find the largest time interval over which the actual US consumption of hydroelectric power was a decreasing function of time. Interpret what decreasing means, practically speaking, in this case.
