How fair is this?

I’m taking a community college course in Physics (for enrichment) at my local CC this summer. Recently, I received a 15/30 on a quiz, even though I got all of my answers right. I got 5 points off for reasonable things (not specifying some forces, etc.) but what really ticks me off is that I got a question right (there were 3 questions, 10 points each) but the teacher took all the points off. He admitted that he didn’t even look at my final numerical answer because my free body diagram was wrong. I derived the formula for calculation right away, but I misplaced 2 of the 4 forces on the free body diagram because it was a difficult FBD to draw. He won’t even give me back a single point for the problem (he claims that the FBD doesn’t lead up to my formula), despite my correct numerical answer. It’s absolutely outrageous, and total bs. How fair is this?

https://www.youtube.com/watch?v=rAlTOfl9F2w

@virsha24 Hi I would appreciate if you’d stop being such an annoying teroll. Your posts were funny at first, but it’s not now. I’m a rising senior, and I will be damned if I have to send a CC transcript with only one class with a B on it.

hahaha I’m sorry. But idk what else you want us to tell you besides talk to the teacher or talk to admins to get a change. I hope it works out

@virsha24 I appreciate your response, but here, I’m trying to gauge out the fairness of his decision. I’ve asked several of my physics and non physics peers, and I received mixed responses (most of them said I should earn partial credit, but not necessarily all the points).

OMG my professor just emailed me and said I could redo the problem for some points. God Bless! ^:)^