Question 212730
HEllo There,

xy+1=0

Subtract + 1  from each side:
+ xy + 1 =+ 0 
     - 1  - 1 

+ xy =- 1 

Plot this point on your graph

y-x+3=0

Subtract + 3  from each side:
+ y - x + 3 =+ 0 
        - 3  - 3 

Divide each side by - 1 .
+ y - x =- 3 
-------- ----
- 1      - 1 

- y + x =+ 3 
Plot this point on your graph.


Hope this helps you!

Delilah R.