Lonnie2018
  • Lonnie2018
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.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
\[m=\frac{ y2-y1 }{ x2-x1 }\]
UsukiDoll
  • UsukiDoll
perpendicular lines <--- there's an intersection parallel lines <---- no intersection
Lonnie2018
  • Lonnie2018
ii'm not doing it by graphing. its an equation.

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mathstudent55
  • mathstudent55
Find the slopes again. You have them both wrong.
mathstudent55
  • mathstudent55
Also, what you say is supposed to be, isn't correct.
mathstudent55
  • mathstudent55
Line 1: (-4, 3) and (5, 0) \(m_1 = \dfrac{0 - 3}{5 - (-4)} \) Line 2: (1, -2) and (3, 4) \(m_2 = \dfrac{4 - (-2)}{3 - 1} \)
mathstudent55
  • mathstudent55
@Lonnie2018 Use my last answer and find the two slopes.
UsukiDoll
  • UsukiDoll
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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