Question

part 1 of 4 (a) use the points (5, 44) and (9, 53) to write a linear model for these data. y = 2.25x + 32.75 part 2 of 4 (b) interpret the meaning of the slope in the context. the slope of 2.25 means that the average height of girls increased by 2.25 in. per year during this period. part: 2 / 4 part 3 of 4 (c) use the model to forecast the average height of 11 - yr - old girls. round all calculations to the nearest hundredth of an inch, if necessary. the average height of 11 - yr - old girls is \boxed{} in.

Explanation:

Step1: Substitute x=11 into model

$y=2.25(11)+32.75$

Step2: Calculate the product term

$2.25\times11=24.75$

Step3: Sum to find final height

$y=24.75+32.75$

Answer:

57.50 in.