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 ...

If we set β = f (1), then for any real number x, we have f (x) = β x and the graph of this function is the straight line in the plane passing through the origin with slope β.

As it shows the graph of a straight line, we begin with the equation \ (y = mx + c\). From the graph, we can also see that the y-intercept is 6, therefore we can say that the equation of the ...