Question

predicting forearm length
complete the steps below to predict tyrell’s forearm length based on his size 9 shoe size.
step 1: predict tyrell’s height based on his shoe size.
step 2: predict tyrell’s forearm length based on his height.
what is tyrell’s predicted forearm length based on a size 9 shoe size?
27 cm
28 cm
29 cm
30 cm
(charts: first chart: shoe size vs height (cm) with line y = 0.26x - 36.78; second chart: forearm length (cm) vs height (cm) with line y = 0.16x + 0.31)

Explanation:

Step1: Predict Tyrell's height based on his shoe size

We are given the equation \(y = 0.26x-36.78\), where \(y\) is the shoe - size and \(x\) is the height. Since the shoe - size \(y = 9\), we substitute \(y = 9\) into the equation:

$$
LATEXBLOCK0
$$

Step2: Predict Tyrell's forearm length based on his height

We are given the equation \(y = 0.16x+0.31\), where \(y\) is the forearm length and \(x\) is the height. Substitute \(x = 176\) into the equation:

$$
LATEXBLOCK1
$$

Answer:

\(28\) cm