Question

The equation y=1.2x+8.9 is a linear model for data comparing the ages of babies between 1 and 11 months old (x) and their average weights in pounds (y). About how much weight does a baby gain per month?

Answer 1

10.1 is the answer to x

Answer 2

For all the people that actually have this question:

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 lbs.  What is the best estimate for the age of the baby?

Answer:

7 months

Step-by-step explanation:

1.2 * 7 + 8.9 = 17.3 & 17.3 is close to 17.5

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