<p>The SAT aside, Hookem I strongly encourage you to graph the absolute value of a cosine function then a cosine function.
You will see that the period is halved in the absolute value function.
Don’t say “it should be obvious to anyone who’s taken precal that the period is 4pi, right off the bat, no graphing necessary” because it is condescending towards me. I am sure that most of the kids, as well as myself, on CC that take this test are in Calculus BC or some form of difficult math.</p>
<p>abs. value cuts period in half thus 2pi</p>
<p>I realize that the SAT answer was 4pi, but I am just trying to tell you that the absolute value does alter the period of a cosine function.</p>
<p>Absolute value does in fact alter the period. It just depends on other factors; if the equation was only abs(sin(x)) or anything like that, the period would have been altered</p>
<p>BTW: Does anyone see their math 2c “Registration in progress” thing?
Cause I don’t and its supposed to be there isn’t it?</p>
<p>hm, historically, has a raw score of 42 never received an 800?<br>
I’m in an awful state where 6 wrong and 1 omit signals a 790…if not worse.</p>