If you want to make your charts easy to interpret, insert a trendline or moving average line in Excel worksheet. See the list of steps to get it done in no time!

Here is my dilemma. I am trying to help a friend add a trendline to an existing graph and control the length of the trendline itself. The graph tracks scores over a date range. The problem is that ...

Trying to predict the future based on past experiences, but you're lacking the right formula? If you've forgotten high school algebra, fear not. With trendlines, Excel can project future figures ...

I have a set of data, which I charted and then used the 'add trendline' tool to get a decent 2nd order poly. fit with the equation: y = -3E-39x^2 + 4E-19x + 3.4212 However, when I type this ...