Answer:
TFC : Horizontal Line parallel to X axis
TVC : Upward sloping inverse S shape curve from origin
TC : Upward sloping increase S shape curve, with Y axis intercept = TFC
Explanation:
Total Fixed cost [TFC] is the total production expenditure, done on fixed factors of production (Eg - on machine, building etc). It is incurred even at zero level of output, stays same (constant) irrespective of output level. So, it's curve is a constant horizontal line.
Total Variable Cost [TVC] is the total production expenditure, done on variable factors of production (Eg - on raw material). It is zero at zero level of output, directly related to level of output thereafter. It first increases at a decreasing rate, then increases at an increasing rate. So, it's curve is inverse S upward sloping curve from origin.
Total Cost [TC] is the total cost incurred on all factors of production (fixed & variable). It is sum of TVC & TFC. As TFC is constant at all levels of output, TC changes due to change in TVC. So, TC is also directly related to output level, first increases at increasing rate & then at decreasing rate. Hence, it is also a inverse S upward sloping curve. But, it also includes constant TFC. So, the curve has intercept on Y axis = TFC (it doesn't start from origin).
