Asked by Haley
                Which equation has (2,-1) as a solution?
y=2x-1***
y=x+3
y=x-3
y=-2x+1
            
        y=2x-1***
y=x+3
y=x-3
y=-2x+1
Answers
                    Answered by
            Ms. Sue
            
    No.
Did you substitute the numbers for the letters in the equations?
    
Did you substitute the numbers for the letters in the equations?
                    Answered by
            Haley
            
    ?? I don't know what that means- how do I figure this out?
    
                    Answered by
            Haley
            
    Ms Sue?
    
                    Answered by
            Haley
            
    Please:( Idk
    
                    Answered by
            Haley
            
    Uhhh, I believe it is C correct?
    
                    Answered by
            Ms. Sue
            
    y = 2
x = -1
    
x = -1
                    Answered by
            Haley
            
    So isn't that A?
    
                    Answered by
            Ms. Sue
            
    Is this right?
y=2x-1
2 = (2 * -1) - 1
2 = -2 - 1
    
y=2x-1
2 = (2 * -1) - 1
2 = -2 - 1
                    Answered by
            Damon
            
    Which equation has (2,-1) as a solution?
y=2x-1***
y=x+3
y=x-3
y=-2x+1
=======================
Now look
It has to work when x = 2 and y = -1
Try the first one
y=2x-1 so -1 = 2*2 - 1
so
-1 = 4-1
-1 = 3 ******* NO WAY
__________________________'
The second one
y = x + 3 so -1 = 2+3 NO WAY
The third one
y = x - 3 so -1 = 2 - 3 = -1 CARAMBA!!!
    
y=2x-1***
y=x+3
y=x-3
y=-2x+1
=======================
Now look
It has to work when x = 2 and y = -1
Try the first one
y=2x-1 so -1 = 2*2 - 1
so
-1 = 4-1
-1 = 3 ******* NO WAY
__________________________'
The second one
y = x + 3 so -1 = 2+3 NO WAY
The third one
y = x - 3 so -1 = 2 - 3 = -1 CARAMBA!!!
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