Multiple Choice Question (MCQ)

h =3a+28.6

A pediatrician uses the model above to estimate the height of a boy, in inches, in terms of the boy’s age a, in years, between the ages of 2 and 5. Based on the model, what is the estimated increase, in inches, of a boy’s height each year?

  1. 3

  2. ×

    5.7

  3. ×

    9.5

  4. ×

    14.3

Collected in the board: Algebraic equation

Steven Zheng posted 2 weeks ago


Answer

  1. Since a represents the age of a boy, which is multiplied by the rate of the growth per year to get the height growth of a boy during the years.

    Hence, the estimated increase, in inches, of a boy’s height each year is 3.


Steven Zheng posted 2 weeks ago

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