Functions and Graphs Pre-Test

We used the same pre-test as last year's. Here's the link to the answers (and explanations).
http://apcalc07.blogspot.com/2007/09/scribe-oo-pre-test.html

Tim-Math-Y says: For Question 3b, we find that the domain is [o,6]. Sadly however, I cannot remember how.

zeph says: We can't have a domain that's less than 0 because it isn't possible for the flag to have a negative area. The largest possible value for the independent variable (the x-value) is 6 because the flag has a width of 6, that is, we can't have a width that's bigger than the flag.

Chapter 1: Functions and Graphs Test is tomorrow.

Next scribe is .:. J + ME .:..