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I need help writing the step by step directions (algorithm) for the following C++ code. ex....

I need help writing the step by step directions (algorithm) for the following C++ code. ex. what would be input, output, and inbetween. No computer code!

Many properties in engineering and science can be analyzed by trying to fit a straight line which uses x as the independent variable and y as the dependent variable. Suppose you have an array of x values and a corresponding array of y values. Write the process to fit a straight line to the data. Using the scenario y = mx + b, where m is the slope and b is the y intercept, m can be calculated by the formula
(Σx * Σy - n Σ(x * y))/((Σx)2 – n Σ(x)2 )
where n is the number points and b is given by
(Σy – slope * Σx)/n
where n is again the number of points

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