A data set (x,y) is to be analyzed using a spreadsheet. One way to get a mathematical relation between x and y is through scatter graph as shown in figure below. The tool used for this purpose is: bending moment will change sign:

Biochemical Engineering mainly deals with the design, construction, and advancement of unit processes that involve biological organisms (such as fermentation) or organic molecules (often enzymes) and has various applications in areas of interest such as biofuels, food, pharmaceuticals, biotechnology, and water treatment processes. (Source: Wikipedia)