Still slogging through the math.
Did a question on the graphing points section on the subway this morning. Did the work in my head because I didn't feel like finding a pen, and then went to check it and it said I was wrong. Hmm.
I'm wrong often enough on the math section - trying to access my 8th grade brain is just a lot of effort sometimes - but this didn't seem wrong. So in the explanation for the answer, it said what I'd expect, except for one of the values, it used 10 instead of -10. Well OF COURSE the answer is different is the value is different.
Clearly I have been getting every single question right and the book (and therefore test) is just all typos like this one.
I suspected as much.