Paula knits hats. The number of hats h she can knit varies directly with the amount of yarn (y) in yards she has. The constant of proportionality is 42.
Write an equation to represent the relationship between the number of yards of yarn Paula has and the number of hats she can knit.
What does the constant of proportionality, 42, represent in this problem?
It could be
h = 42 y
or
y = (1/42)y
we need a given case to determine which way
e.g. it took 84 yards to make 2 hats
or 2 yards made 84 hats, (not likely)
You decide