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Medium Math · Algebra · Linear functions · MCQ

The figure presents a 3-column table, with 3 rows of data, titled “Energy per Gram of Typical Macronutrients.” The heading for column 1 is “Macronutrient,” the heading for column 2 is “Food calories,” and the heading for column 3 is “Kilojoules.” The 3 rows of data are as follows. Row 1.Macronutrient, Protein; Food calories, 4 point zero; Kilojoules, 16 point 7. Row 2. Macronutrient, Fat; Food calories, 9 point zero; Kilojoules, 37 point 7. Row 3. Macronutrient, Carbohydrate; Food calories, 4 point zero; Kilojoules, 16 point 7.

The table above gives the typical amounts of energy per gram, expressed in both food calories and kilojoules, of the three macronutrients in food. If x food calories is equivalent to k kilojoules, of the following, which best represents the relationship between x and k ?

  1. A

    k equals zero point 2 4 x

  2. B

    k equals 4 point 2 x

  3. C

    x equals 4 point 2 k

  4. D

    x k equals 4 point 2

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id cb_question_bank:9b69ae96-f8ed-46d3-b09a-b1562763da88 · question 868fc236 · IBN 070898-DC · JSON