Gian Carl M. Macuha Summary Scatter Graph of the Graphical Method Scatter Graph of the Graphical Method • It uses a graphical solution in separating mixed costs. • It is used to determine relationship between two variables (x and y). • The x- variable is the dependent variable • The y-variable is the independent variable Illustration: • ABC manufacturing company has the following data for its electric consumption in the production area for the half of the year 2020: Month January Production Level in Units 1,000 Amount in US Dollars 4,890 February 1,100 5,010 March 900 4,820 High-Low Method April 850 4,850 • Does not necessarily need for graphical solution. May 1,050 4,900 June 750 4,700 • It selects and uses the highest and lowest values of x (production level) to compute for the slope and the yintercept. Step 1 Solve for the Y-intercept (Fixed cost) Y = mx + b 5,010 = (0.886) (1,100) + b 5,010 = 974.60 + b 5,010 – 974.60 = b 4,035.40 = Under the Scatter Graph Method, our fixed cost is approximately at 4,100.00. But, Under the High-low Method, our fixed cost is around 4,035.40