For babies between 1 and 11 months old, the equation y = 1.2x + 8.9 models the baby's weight when the baby is x months-old a baby in that age range weighs 17.5 lb what is the best estimate for the age of the baby?

A. 6 months

B. 9 months

C. 7 months

D. 8 months

The slope is the number "m" multiplied on the x in the equation of a straight line (when written as "y = mx + b"), and the y-intercept is "b." (that is, the point where the line crosses the vertical y-axis).

[tex]1.2 * 7 + 8.9 = 17.3 & 17.3[/tex]

is close to [tex]17.5[/tex]

Hence, the age of baby is 7 month.

To know about straight line here,https://brainly.com/question/14323743

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For babies between 1 and 11 months old, the equation y = 1.2x + 8.9 models the baby's weight when the baby is x months-old a baby in that age range weighs 17.5 lb what is the best estimate for the age of the baby? A. 6 months B. 9 months C. 7 months D. 8 months

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The definition of straight line

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For babies between 1 and 11 months old, the equation y = 1.2x + 8.9 models the baby's weight when the baby is x months-old a baby in that age range weighs 17.5 lb what is the best estimate for the age of the baby?

A. 6 months

B. 9 months

C. 7 months

D. 8 months