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y=x-2;(3,1) (-2,-4) show that each pair has a solution and graph the 2 pairs

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1 Answer

Hi Tammy;
y=x-2;(3,1) (-2,-4)
Let's begin with the first coordinates...
(3,1)-----(x,y)
The equation is...
y=x-2
1=3-2
1=1
SOLVED!
 
(-2,-4)
y=x-2
-4=-2-2
-4=-4
SOLVED!
 
Do you know how to graph these?
 

Comments

You will graph both...
 
                4
                3
                2
                1       *
-4 -3 -2 -1 0 1 2 3 4---x-axis
               -1
               -2
               -3
         *    -4
                
                 y
               axis
 
(3,1) (x,y) are both positive numbers.  The x-axis is the horizontal axis.  The y-axis is vertical.  First, you will find 3.  It is on the right of the center of the graph.  Then, you will move up to find 1.
 
(-2,-4) (x,y) are both negative numbers.  First, you will find -2.  It is to the left of the center.  Then, you will find -4.  It is below.