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Posted by on Friday, February 19, 2010 at 6:04pm.

The Egg Problem. A certain zoo kept records of the
relationship between the weight of a mother ostrich and
the weight of her egg. Data for three birds is shown in
the next table.
a. Estimate the weight of an egg from a mother ostrich
weighing 175 lbs.
b. How much would you expect the egg to weigh from
a mother ostrich weighing 190 lbs?

  • math - , Friday, February 19, 2010 at 6:55pm

    We do not have the table to help you.

  • math - , Friday, February 19, 2010 at 7:08pm

    Ostrich 1 Ostrich 2 Ostrich 3
    Weight of Mother 120 lbs. 160 lbs. 180 lbs.
    Weight of Egg 2.4 lbs 3.2 lbs 3.6 lbs

    Sorry about that.

  • math - , Friday, February 19, 2010 at 8:08pm

    From your data, form three ordered pairs
    (120,2.4), (160,3.2) and (180,3.6)

    there is a linear relation between the 3 points, they lie in a straight line.
    So you can find the equation of egg weight (e) vs ostrich mother weight (w)

    the slope between any two of the three points is .02
    so e = .02w + b , (using the standard y=mx+b )
    using (120,2.4)
    2.4 = .02(120) + b
    b = 0

    so e = .02w ---- a direct variation.

    so for a) sub in 175 for w to get
    e = .02(175) = 3.5

    You do b), ok?

  • math - , Friday, February 19, 2010 at 8:44pm

    Yup, I think I got it

  • math - , Thursday, July 7, 2011 at 1:55pm

    e = .02(190) = 3.8 right?

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