SOLUTION: How can you graph absolute value equations? |x|+|y|=2

Algebra.Com
Question 714246: How can you graph absolute value equations? |x|+|y|=2
Found 2 solutions by Edwin McCravy, AnlytcPhil:
Answer by Edwin McCravy(20056)   (Show Source): You can put this solution on YOUR website!
|x| + |y| = 2

We find the x-intercepts by setting y=0

|x| + |0| = 2
      |x| = 2
        x = ±2

So the x-intercepts are (2,0) and (-2,0)

We find the y-intercepts by setting x=0

|0| + |y| = 2
      |y| = 2
        y = ±2

So the y-intercepts are (0,2) and (0,-2) 

We plot those:



We find some more points.

Let x=1 and solve for y

|1| + |y| = 2
  1 + |y| = 2
      |y| = 1
        y = ±1  so we have the points (1,1) and (1,-1)

Let x=-1 and solve for y

|-1| + |y| = 2
   1 + |y| = 2
       |y| = 1
         y = ±1  so we have the points (-1,1) and (-1,-1)

We plot those four points:



And we sketch in the graph:



Edwin

Answer by AnlytcPhil(1806)   (Show Source): You can put this solution on YOUR website!
|x| + |y| = 2

We find the x-intercepts by setting y=0

|x| + |0| = 2
      |x| = 2
        x = ±2

So the x-intercepts are (2,0) and (-2,0)

We find the y-intercepts by setting x=0

|0| + |y| = 2
      |y| = 2
        y = ±2

So the y-intercepts are (0,2) and (0,-2) 

We plot those:



We find some more points.

Let x=1 and solve for y

|1| + |y| = 2
  1 + |y| = 2
      |y| = 1
        y = ±1  so we have the points (1,1) and (1,-1)

Let x=-1 and solve for y

|-1| + |y| = 2
   1 + |y| = 2
       |y| = 1
         y = ±1  so we have the points (-1,1) and (-1,-1)

We plot those four points:



And we sketch in the graph:



Edwin


RELATED QUESTIONS

How do you graph absolute value? For example:... (answered by Alan3354)
How do you know how to graph and solve absolute value equations such as;|x + 5| =... (answered by algebrastudent611)
How do you graph an absolute value equation accurately? On the other hand, how do... (answered by Fombitz)
How do you solve absolute value... (answered by venugopalramana)
How do you solve absolute value... (answered by tanjo3)
How do you graph absolute value... (answered by Edwin McCravy)
can you simplify x^2 over absolute value of... (answered by tommyt3rd)
how do you graph the inequality y>2abolute value sign x+3 close absolute value sign... (answered by stanbon,MathLover1)
Graph the absolute value:... (answered by drk)