Rates of Change
Formulating Differential Equations
● You can use differential equations to model the rate of change of a
variable
● If a is proportional to b then a = kb , and we can find k (the constant of
proportionality) by plugging in known values of a and b
● We can use this idea to formulate a differential equation:
Solving Differential Equations
○ If not enough information to find c then the equation you have is the
general solution
○ If you can sub in values to find c then the new equation (after
subbing to find c ) is a particular solution
● Can solve through separating variables: