1 : John Snow is considered the father of epidemiology (yes, really). He was the first to trace a spreading epidemic of Cholera to a particular water source. He convinced the locals to remove the handle to the water pump and Cholera deaths almost immediately ceased. In his work John Snow linked the idea of the number of Cholera deaths, to the specific regions that the people got their water from. Using this, one could build a formula that takes as input a water source, and gives as output how many people were infected in the region served by that water source by Cholera. Would this be a relation or an equation?
Relation Equation
2 : True or false; a relation is always some kind of equation.
True False
3 : Consider the relation between dimensions and area given by Could this be described as an equation?
Yes. No.