0 like 0 dislike
0 like 0 dislike
Bit confused about absolute values

3 Answers

0 like 0 dislike
0 like 0 dislike
Remember the definition of |x|. So |x| = x if x≥0 or -x if x<0.
0 like 0 dislike
0 like 0 dislike
You did change something though: you turned y into |y|. Doing that makes something like (1,-1) a solution because the absolute value turns the -1 positive. The four rays coming out of the origin in the graph are pairs like (1,1), (1,-1), (-1,1), and (-1,-1).
0 like 0 dislike
0 like 0 dislike
The graph of an equation is a plot of every point that makes the equation true. So you've allowed negative y's.

Related questions

0 like 0 dislike
0 like 0 dislike
6 answers
llsethj asked Jun 21
Question about EMA results
llsethj asked Jun 21
by llsethj
0 like 0 dislike
0 like 0 dislike
5 answers
BTCC asked Jun 21
Oliver wyman article and general experience about international students
BTCC asked Jun 21
by BTCC
0 like 0 dislike
0 like 0 dislike
3 answers
JustinaCoronel asked Jun 21
Question about exams
JustinaCoronel asked Jun 21
0 like 0 dislike
0 like 0 dislike
4 answers
SteveESpaulding asked Jun 21
Advice about going into other fields even though I want to pursue CAS
SteveESpaulding asked Jun 21
0 like 0 dislike
0 like 0 dislike
22 answers
TechChange asked Jun 21
35 Years Ago, my department functioned with 3 actuaries. Today, with vastly improved computing power, we have about 75. Why do we need so many more? Is a lot of it admini...
TechChange asked Jun 21

24.8k questions

103k answers

0 comments

33.7k users

OhhAskMe is a math solving hub where high school and university students ask and answer loads of math questions, discuss the latest in math, and share their knowledge. It’s 100% free!