<PRE><B>Question 807805</B>
solve the system of equations by graphing:
Assume you mean
y= -x - 3
y = x + 1
:
Find a set of x/y pairs for the 1st equation: y = -x - 3 
For example on the first eq: when x = 2: y = -2 -3; = -5
Do the same for each value of x
A table
 x | y
------
-4 | +1
-3 | 0
-2 | -1
 0 | -3
+2 | -5
Make table for the 2nd equation y = x + 1
 x | y
-------
-4 |-3
-3 |-2
-2 |-1
 0 |+1
+2 |+3
:
Plot these using at least two points from the table on the same graph
should look like this
{{{ graph( 300, 300, -6, 5, -5, 5, -x-3,x+1) }}} 
The solution is where the two graphs intersect where
x=-2, y= -1, you  can see this on the tables too</PRE>