Question

The graph at left in the tc-plane models the global wind power capacity, c, in gigawatts, t years since 1996. What is the best interpretation of the c-intercept of this graph?

A. In 1996, the global wind power capacity was approximately 7 gigawatts.


B. In 1996, only approximately 7% of wind power turbines were being used to capacity.


C. Each year, there is an increase of approximately 7 gigawatts of global wind power capacity.


D. Each year, there has been approximately 7% increase in global wind power capacity

Answer 1

Given :  The graph  the tc-plane models the global wind power capacity, c, in gigawatts, t years since 1996.

To Find : What is the best interpretation of the c-intercept of this graph

Solution:

as its  tc-plane models

c-intercept of this graph   basically show the value when t = 0

( Means where graph cut c axis )

Graph is since 1996.

Hence t = 0  Means  year 1996

and value of c means capacity in year 1996

Graph is cutting  y axis around   7  gigawatts.

Hence best interpretation of the c-intercept of this graph is :

In 1996, the global wind power capacity was approximately 7 gigawatts.

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