Question 1137458
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average weight of a male child’s brain is 970 grams at age 1 and 1270 grams at age 3.
i.Assuming that the relationship between brain weight y and age t is linear,write linear model for the data.
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(1, 970) & (3, 1270)


{{{y-970=((1270-970)/(3-1))(x-1)}}}

{{{y-970=150(x-1)}}}

{{{y=150x-150+970}}}

{{{highlight(y=150x+820)}}}


Increases at rate of 150 grams per year  (slope)