Investors who read stock charts use moving averages, price action and volume signals to sell. Add to that toolbox a simple ...

Revise how to work out the gradient of a straight line in maths and what formula to use to calculate the value change in this Bitesize guide.

A linear equation is drawn as a straight line on a set of axes. To draw the graph we need coordinates. We generate these coordinates by substituting values into the linear equation. STEP 1 - Draw a ...

Microsoft Excel is designed to organize and interpret small and large amounts of data. Building a curved graph in Excel based on X and Y data points is fairly simple. You begin by adding the data ...