Deals with geometric situations where the derivative arises and yields a separable equation. Find a curve for which the area of the triangle determined by the tangent, the ordinate to the point of tangency, and the x-axis has a constant value equal to a2. Solution WHAT IS THE EQN. OF CURVE ? LET THE EQN. OF CURVE BE Y=F[X] LET [H,K] BE ANY POINT ON THE CURVE ITS ORDINATE = K SLOPE OF TANGENT =F\' = M EQN. OF TANGENT AT [H,K] IS.

1. Dean Corporation has two service departments, Power and Maintenance, and two production
departments, Painting and Polishing. The following data have been estimated for next year’s
operations:
Department: Direct Charges Kilowatt Hours Used Square Footage
Power $450,000 20,000 10,000
Maintenance 120,000 50,000 5,000
Painting 235,000 100,000 30,000
Polishing 265,000 150,000 20,000
Distribute the service department costs using the direct distribution method. Prepare journal
entries.
Solution
Date Particulars Debit $ Credit $ Cost-Paining department 180,000 Cost-Polishing
department 270,000 Cost-Power department 450,000 Cost-Paining department
72,000 Cost-Polishing department 48,000 Cost-Maintenance department 120,000