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The cost function of a firm is given by . The average cost of the firm at is:
The cost function of a firm is given by $C(x) = 3x^2 - 2x + 6$. The average cost of the firm at $x = 3$ is:
- (a)11
- (b)17
- (c)9
- (d)27
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From ISC 2022 Specimen Mathematics Paper 1, question 32.