When a differential equation is given along with a x value that correlates with a y value for that question, you can solve what the constant "c" is equal to. Examples are provided below.
Steps: 1. Solve the differential equation how you normally would (refer to this page if you need help with solving the differential equation) 2. Plug in the x and y values into the solved differential equation to evaluate for the "c" constant 3. Once you have found the "c" constant, plug it into the original solved differential equation from step 1