what is trend graphs how to find trend line what is a trend line? what is trend line statistics what is trend analysis in graph what is trendline what is a trend line what is a trend-line what is the relationship between the trend line and the average of the sample what are the different types of trend lines what is a trend line what is a trend line what is trend line what is a trend line what is trend line? what is the difference between trend-line and regression what is a trend line what is a trend line in statistics what is trend line what the difference between linear and exponential trend lines