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3 June, 12:35

After plotting the data where x equals the length of the side of a polygon, and f (x) represents the area of the polygon, Jack used technology and determined the appropriate model to approximate the area of the polygon, f (x) = x2 + 2x + 3. Use the model Jack created to predict the area of a polygon that has a side length of 3.

10

18

19

20

+1
Answers (1)
  1. 3 June, 12:51
    0
    We are given the model to approximate the are of the polygon to be

    f (x) = x² + 2x + 3

    where x is the length of the side

    For a polygon with a side length of 3, x = 3

    f (3) = 3² + 2 (3) + 3

    f (3) = 18

    The area is 18
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