Final answer:
The constant of proportionality for converting feet to inches is 12, as there are 12 inches in a foot. Jayda is correct, while Lin refers to the conversion of inches to feet, which is 1/12.
Step-by-step explanation:
Jayda and Lin are discussing the constant of proportionality between inches and feet. To determine if it is 12 or 1/12, we need to understand the relationship between these two units of measurement. There are 12 inches in 1 foot, which means to convert feet to inches, we multiply by 12. Therefore, if you have 1 foot, in inches, that would be 12 inches (1 foot x 12 inches/foot = 12 inches). Conversely, to convert inches to feet, you divide by 12. Thus, if you have 12 inches and want to know how many feet that is, you would perform the calculation of 12 inches รท 12 inches/foot = 1 foot. Hence, Jayda is correct when saying that the constant of proportionality to convert feet to inches is 12. On the other hand, Lin is referring to the constant to convert inches to feet, which is indeed 1/12.