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Lonnie2018

  • one year ago

Determine whether the lines connecting each pair of points are parallel or perpendicular. Line 1: (-4, 3) and (5, 0) Line 2: (1, -2) and (3, 4) Its supposed to be 1/3 for both but i got 1/2 for the second line.

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  1. anonymous
    • one year ago
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    \[m=\frac{ y2-y1 }{ x2-x1 }\]

  2. UsukiDoll
    • one year ago
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    perpendicular lines <--- there's an intersection parallel lines <---- no intersection

  3. Lonnie2018
    • one year ago
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    ii'm not doing it by graphing. its an equation.

  4. mathstudent55
    • one year ago
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    Find the slopes again. You have them both wrong.

  5. mathstudent55
    • one year ago
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    Also, what you say is supposed to be, isn't correct.

  6. mathstudent55
    • one year ago
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    Line 1: (-4, 3) and (5, 0) \(m_1 = \dfrac{0 - 3}{5 - (-4)} \) Line 2: (1, -2) and (3, 4) \(m_2 = \dfrac{4 - (-2)}{3 - 1} \)

  7. mathstudent55
    • one year ago
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    @Lonnie2018 Use my last answer and find the two slopes.

  8. UsukiDoll
    • one year ago
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    also parallel lines have the same slope perpendicular lines have different slopes and we use this formula \[m_1 \times m_2=-1\]

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