One way to assess this fluctuating data is to add a linear trend line to the Excel 2013 graph. This visual element considers all the data and displays the overall direction the values are taking.

GCSE WJEC Equations of lines – WJEC Straight-line graphs Look at how to plot in all four quadrants of a graph and draw straight lines. We can determine information about the gradient and ...

Linear functions are widely used in economics, physics, finance, and data analysis. A positive slope indicates that both variables increase together; a negative slope means one decreases as the ...

There are no straight-line segments on a quadratic graph. The coordinates (x, y) are plotted and joined by drawing a freehand curve. Two consecutive horizontal points are joined by a rounded curve ...