The average cost curve is u-shaped curve first decreased and then increased, and cost at least at the lowest point of the local output, the average total cost down to cause the output to increase. It began to rise because average variable costs have risen sharply.

Average cost curve is U shape curve drops and then rises at the lowest point, where the output of the least cost and the average total cost increase in output. It began to increase as the average variable costs rise dramatically.

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The average cost curve is u-shaped, rising curves to drop before, at the lowest point of the local costs of output at least, average total cost decline lead to increased output. It started to rise because the average variable costs increased substantially.

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