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Google Trends According to Google Trends, popular interest in light-emitting diode (LED) lightbulbs has been soaring, while interest in compact florescent lightbulbs (CFLs) has been dropping. The following equations approximate the Google Trends rating (on a scale from 0 to 100) in year x, where
When did interest in LED lighting surpass CFL lighting? Round your answer to the nearest year.
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