An equation of the line of best fit shown in the scatter plot is y=92x+22. AlternativeText Part A What is the meaning of 92in this model? On average, children will be about 9 inches taller when they are 2 years old. On average, children will grow about 9 inches every year in their first five years. On average, children grow about 9 inches every 2 years in their first five years. On average, children will grow 2 inches every year for their first 9 years. Part B What does 22 mean in this model? The y-intercept, 22, means that on average, babies grow about 22 inches in the first five years. The y-intercept, 22, means that on average, babies are 22 inches in length when born. The y-intercept, 22, means that on average, two-year olds are 22 inches tall. The y-intercept, 22, means that on average, babies will grow about 22 inches in the first 2 years.