For the set 2-SeparableEquations, some of the questions ask for your solution explicitly (this means y=….) and some of them ask for your solution implicitly (this means that x and y are in an equation together). Be careful to pay attention to what each question is asking for.
For the set 3-TransformNonlinearToSeparable, the answer checkers for some of the problems are a little finicky. If you are confident in your answer but WeBWorK is not accepting it, try treating your constant c as a variable instead of “all possible constants” like we do in class. That is, you pick up your +c in your integration step, and you don’t do anything fancy like we do in class… for example, in class if we had a +2c term as part of a solution, we’d just change it to +c since twice “all possible constants” is just “all possible constants” again. Some WeBWorK problems can handle this, but not all of them, so if you were having trouble in this example, you’d just leave that term as +2c.
Hope this helps!
Nelson and I went over some of these finicky WeBWorK questions in office hours today. Some more detailed hints about the ones that don’t like c to stand for “all possible constants” but instead treat c as a variable. Sometimes moving a negative sign from in front of a fraction to the denominator helps; sometimes including a denominator helps (like if you had divided both sides of an equation by some number to solve for y, keep that number in the denominator of your c term).
For the test, I’ll be reading all of your written work and won’t be this finicky about your constant term, just make sure you write all your steps carefully so I can follow them.