ENVIRONMENTAL SCIENCE: Wind Energy
The use of wind power is growing rapidly after a slow start, especially in Europe, where it is seen as an efficient and renewable source of energy. Global wind power generating capacity for the years 1990 to 2005 is given approximately by y = 0.33x2 – 1.5x + 2.4 thousand megawatts, where x is the number of years after 1990. (One megawatt would supply the electrical needs of approximately 100 homes).
a. Graph this curve on the window [0, 20] by [0, 100].
b. Use this curve to predict the global wind power generating capacity in the year 2010. [Hint: Which x-value corresponds to 2010? Then use TRACE, EVALUATE, or TABLE.]
c. Predict the global wind power generating capacity in the year 2015.
Source: Worldwatch Institute
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