Yay took it today. This whole past week I was going to post practice questions with solutions, but I never got time.

I'm not really supposed to discuss it or anything, but I will make a few comments about the actual test itself.

The test was a bit harder than I expected it to be. At the 40 minute mark I wasn't even done (still had about 5 problems left). On most practice tests I finish in about 30 minutes.

There were a few notable problems. Somewhere around question 40, there was a question that mentioned linear regression. At the top of the question, there was this chart that showed, for a certain fat content, what the calorie content was. Somewhere in the question I saw: "By the least-squares method of linear regression...." and I was like WHATHWHTAHWTHAWHTHTT???????

So the tests are getting harder. None of the practice tests or any study materials I had gone through (and I had gone through a lot) had mentioned linear regression.

I learned linear regression at the end of precalculus recently, but I forgot a lot of it. Least-squares isn't that bad, but I probably would have wasted a bunch of time on it if I had done that. cuz....
The question was easily guestimatable. <-definitely not a word
The answer choices were fairly far apart, and there were corresponding values from the chart that were pretty close.

The last problem was actually really easy compared to some other ones. It was asking for the area of a parallelogram with endpoints on the x axis and a parabola. Since the length of the top (parallel to the x axis) was given, and the x intercepts of the graph, the other two endpoints, were extremely obvious, one only had to find the height. The height was just the function of the parabola evaluated at the endpoints, which could be found by dividing the length of the top by two. (hm that's not really clear, sorry it's hard without a picture and the actual problem)

There was a problem that I wasn't really able to do without a graphing calculator, so I just used calculus.

Speaking of calculus, there were 2 problems that were calculus. (ok one was sorta related) While one was a limit. a really really easy limit.

Yay did every problem and praying for 800.

EDIT: csmath said something about how TI-84's do least-squares linear regression.

Lol I just used my scientific calculator. I have this crappy TI-83