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dusty

  • one year ago

Select the one that goes with the graph -2x - y = 4 2x + y = -2 -8x - 4y = 16 -4x - 2y = 8 x - 2y = 6 -2x + y = 4 2x + 3y = 6 3x + 2y = 4

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  1. dusty
    • one year ago
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  2. evansda
    • one year ago
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    I'm assuming that there are two lines on this graph; one red and one black?

  3. dusty
    • one year ago
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    yes

  4. evansda
    • one year ago
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    Basically what you are going to do is solve both equations for y. If you look at the graph, you have two lines that are: \[y=-2x-4\] When you solve the pairs of equations for y, you need to get the equation above. If you get something else, then that is not the correct answer. Which, in this case, happens to be the second one.

  5. dusty
    • one year ago
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    you confused me...

  6. evansda
    • one year ago
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    Figure out the equation of the line on the graph. They both have the same slope and intercept. Therefore, they are the same line.

  7. dusty
    • one year ago
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    oh okay thank you :)

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