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anonymous

  • one year ago

Two lines, A and B, are represented by equations given below: Line A: y = x − 4 Line B: y = 3x + 4 Which of the following shows the solution to the system of equations and explains why?

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  1. pooja195
    • one year ago
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    it tells you what y equals right ? so lets plug equation 1 into equation 2 x-4=3x + 4

  2. pooja195
    • one year ago
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    solve for x

  3. anonymous
    • one year ago
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    -4?

  4. anonymous
    • one year ago
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    @pooja195

  5. pooja195
    • one year ago
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    good :) now we need to plug that into equation 1 :P -4-4=?

  6. anonymous
    • one year ago
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    -8, but because why? because it satisfies both equations or because the point does not lie on any axis? @pooja195

  7. pooja195
    • one year ago
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    we have (-4,-8) as the solution We plug -4 into the other equation to find the value of y

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