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PBS
Pbs: The Lowdown: Functional Relationships Between Quantities: Calculating Fuel Consumption
In these interactive visualizations, explore the relationship between calculating miles per gallon (mpg) to gallons per mile in fuel use for vehicles. Most drivers think gas usage falls linearly (in a straight line) as mpg increases. But...
Oregon State University
Oregon State University: Differential Equations
Defines differential equations and some of its properties including, linear, homogeneous and nonhomogeneous.