Gabylovesyou
Choose the correct graph of the given system of equations.
y − 2x = −1
x + 3y = 4
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Gabylovesyou
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Gabylovesyou
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D.None of the above
Gabylovesyou
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@blondie16
blondie16
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solve for y
Gabylovesyou
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y − 2x = −1
i get:
y = 2x -1
blondie16
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right :) then graph it
Gabylovesyou
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i dont see it in those graphs..... ^^
Gabylovesyou
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wait..
blondie16
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wait?
Gabylovesyou
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how do i graph it?
blondie16
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the y-int. then the slope is up 2 over 1 or down 2 over 1
Gabylovesyou
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A?
Gabylovesyou
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@blondie16
blondie16
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no it is not a
Gabylovesyou
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???????
blondie16
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graph it and find it it would be B
Gabylovesyou
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no its not B
blondie16
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how?
Gabylovesyou
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yes it is nevermind... i get a positive slope for the first one and a negative slope for the other one........
blondie16
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lol
Gabylovesyou
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im so confusing lol
blondie16
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xD
Gabylovesyou
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im correct right? lmfao..
Gabylovesyou
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@AccessDenied
Gabylovesyou
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@Hero
Gabylovesyou
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@rebeccaskell94
rebeccaskell94
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I haven't done this in two years D:
@ash2326 help her? :D Please? haha
Gabylovesyou
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lol :) thanks
rebeccaskell94
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No problem haha
ash2326
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@Gabylovesyou Can you solve simultaneous linear equations?
Gabylovesyou
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O.o no lol .......
Gabylovesyou
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@ash2326 I did it already.... can u check my answer?? I got B?
ash2326
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How did you solve this?
Gabylovesyou
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solved for y and then i graphed both of them ..
ash2326
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How did you graph?
Did you use a paper?
Gabylovesyou
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no......... i used the comp..
ash2326
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for solving y also?
Gabylovesyou
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no... for solving y i used paper lol
Gabylovesyou
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@ash2326
Gabylovesyou
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Am i correct? is it B ?
ash2326
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Yes, you are right. But I feel that you could have used another method for solving for x and y
You can find y in terms of x from both the equations and compare them to find the value of x and then use x value to find y. The value you'll get for x and y, will be the point where the lines intersect.
Gabylovesyou
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oh. lol :p ok ..