Step 1: The key rule for a separable differential equation is for the y terms and x terms to be on opposite sides of the equation sides. Step 2: Once all of your x and y terms are on separated, integrate both sides. Step 3: After you've integrated both sides, add "+C" on the side of your x values. Step 4: Solve for C by substituting x and y values by the given points. Step 5: Solve for Y.