3. To make a friendship bracelet, some long strings are lined up; then, one string is
tied in a knot with each of the other strings to create a row of knots. A new string is
chosen and knotted with the all the other strings to create a second row. This
process is repeated until there are enough rows to make a bracelet to fit around
your friend's wrist.
Are the number of knots proportional to the number of rows? Explain your
reasoning.
4. What information do you need to know to write an equation relating two quantities
that have a proportional relationship?