4. Diffrent total curves-:Total Utility,Total variable cost,Total product and Total revenue curves

This shows the Total Utility curve which increases at diminishing rate.
Reason-:marginal utility is diminishing.
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This diagram shows Total variable cost curve .It initially increases at diminishing rate and then increase at increasing rate.
Reasons-:MC initially falls and then rises.
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This diagram shows Total product curve which initially increases at increases rate then increases at diminishing rate and then starts falling down.
Reason-:MP initially rises and then falls.
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This diagram shows Total revenue curve in perfect competition which is increases at constant rate.
Reason -:MR is constant.
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