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qid 291 · business

Question: A shoe factory has fixed costs of $1200 per day, and variable costs of $1.50 per shoe. Find a linear cost function to represent their daily costs.

  1. Cost = 1200 + X
  2. Cost = 1500 + 1.5 X
  3. Cost = 1200 + 1.5 X
  4. Cost = 1200 + 1.75 X
  5. Cost = 1000 + 2 X
  6. Cost = 1200 + 2 X
  7. Cost = 1200 + 0.75 X
  8. Cost = 1100 + 1.25 X
  9. Cost = 1300 + 1.5 X
  10. Cost = 1000 + 1.5 X

Our answer: C. Cost = 1200 + 1.5 X Source quote machine-checked (exact quote)

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How it was answered

Stored formula / worked method, replayed by code

Linear daily cost function formulation problem

card: formula · card sha256 c569e78a3fb04ca8…

Current source

OpenStax College Algebra 2e, Section 4.2 "Modeling with Linear Functions"

https://openstax.org/books/college-algebra-2e/pages/4-2-modeling-with-linear-functions

“They incur a fixed cost of $25,000 for rent, insurance, and other expenses. It costs $0.25 to produce each doughnut.”

Source quote machine-checked (exact quote)

retrieved 2026-09-18T01:08:19.096Z

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Earlier version (superseded)

https://openstax.org/books/college-algebra-2e/pages/4-2-modeling-with-linear-functions

Source weak (http_get_200_text_and_question_terms)

retrieved 2026-09-17T00:31:34.143Z

page text sha256 c1d8aa91e13798c7… · content sha256 —

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Earlier version (superseded)

https://openstax.org/books/college-algebra-2e/pages/4-2-modeling-with-linear-functions

Source weak (http_get_200_text_and_question_terms)

retrieved 2026-09-17T00:31:34.143Z

page text sha256 c1d8aa91e13798c7… · content sha256 —

addendum formula_qid291.formula_ADDENDUM_source_bf20260917T003134Z · sha256 dee54c6c4b464c33… · replaces the version below, addendum sha256 e61bb93e430c9c0f…

Earlier version (superseded)

No public source has been found for this card yet (5 places checked internally).

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