# How do you graph #x+y=0# by plotting points?

##### 1 Answer

May 9, 2017

see explanation.

#### Explanation:

#x+y=0" is the equation " y=-x" in disguise"#

#"this tells us that every y-coordinate is the negative of the"#

#"corresponding x-coordinate"#

#rArrx=2toy=-2rArr(2,-2)#

#rArrx=1toy=-1rArr(1,-1)#

#rArrx=0toy=0rArr(0,0)#

#rArrx=-1toy=1rArr(-1,1)#

#"plot these points and draw a straight line through them"#

graph{-x [-10, 10, -5, 5]}