<p>Can someone help? How to graph this thing?
In fact how should I graph an equation which has |y|</p>
<p>|x| should be symmetric about Oy, right? and what about |x|+|y|</p>
<p>PS i`m not looking for a solution but a way to understand how to solve it.</p>
<p>Consider |x| + |y| = 2 as a piecewise function, so for </p>
<p>x > 0, y > 0, the following is true, x+y=2
x>0, y<0, ie... x-y=2
x<0, Y>0, ie.. y-x=2
x<0, y<0, ie..x+y=-2</p>
<p>Those inequalities above indicate 'greater than or equal to' not simply 'greater than' as I do not have that symbol on my keyboard.</p>
<p>Anyway, having established your 4 equations, you can go about plotting those lines in each of the 4 established quadrants...</p>
<p>Hope I explained that well</p>
<p>are there gonna be questions like that on the actual Math IIC or is that just another friggin Barron's question?</p>
<p>That makes sense!<br>
Thanks!
It is weird how they explain those things in the barrons book.</p>
<p>I just bumped into it in the Barrons book .....they make me think that i don`t know anything .... the things they give and the way they explain .... it is depressive!</p>
<p>it definately is...i look my raw score on the practice and i'm all like "oh frik! I suck at math"</p>
<p>I was happy when I scored 25 (out of 50) though i`ll have to improve that.</p>
<p>on the actual test i'm aiming for at least a 40/50..which is approximately 750-ish....i'm glad that i came to know that Barrons was much harder than the actual test...cuz i the first time i took the diagnostic test..i got a 26/50 on Barrons and i was like "Oh crap, i'm scrwed...i gonna get a 600", but man am i glad that i found out Barrons is hard</p>
<p>I want to do 700+ . i`m in fact retaking it . the first time i had 680 (51%) and i answered only 35 question (run out of time) and if i had some wrong...... the math IIc scale is favourable but the percentile is not</p>
<p>i'm scared i mite run out of time too...especially after doing the barrons tests..</p>
<p>I did run out of time on the practice test! reached 39 and that was it :(</p>
<p>It would help to "play" with the graph of some funcion of your choice
y = f(x) - what happens to it under these scenarious:
y = |f(x)|
y = f(|x|)
y = |f(|x|)|
|y| = f(x).</p>
<p>Barron's is good for "extreme training". I would not worry about running out of time. Just work on all the questions at your normal pace.
Sparknotes practice tests are slightly easier then real ones but closer in material.</p>
<p><em>going to play</em>
well it seems i`ll have to study on friday as well.</p>