In the scenario described, Monet is measuring the relationship between age and shoe size and observes that it follows a pattern when comparing shoe size to height. Since shoe size generally increases with age in children (up to a point), this indicates a positive relationship.
However, since she mentions it follows a pattern that connects to height, it suggests that shoe size might not increase linearly but could exhibit some curvature as the students grow. If the relationship is positive and has an increasing rate of growth, then a positive quadratic function would be a suitable representation.
Therefore, the best model for this scenario is a positive quadratic function.