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lvasquev462

A line contains points (-4, 2) and (0, -4). Another line graphed in the same coordinate plane contains points (4, 3) and (-5, -3). Based on the slopes of these lines, are they parallel, perpendicular or neither?

  • one year ago
  • one year ago

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  1. CalebBeavers
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    Parallel lines: same slope Perpendicular lines: negative inverse slope

    • one year ago
  2. lvasquev462
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    inverse slope

    • one year ago
  3. lvasquev462
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    its Parallel

    • one year ago
  4. ByteMe
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    What did you get for the slope of the first line?

    • one year ago
  5. FaisalAyaz
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    Inverse slope means they are perpendicular. For Example If a line has slope 3 and other has -1/3 then these two lines are perpendicular.

    • one year ago
  6. lvasquev462
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    so it will be Parallel

    • one year ago
  7. CalebBeavers
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    What did you get for the slopes?

    • one year ago
  8. FaisalAyaz
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    Yes if the slopes of both the lines are same then lines are parallel.

    • one year ago
  9. lvasquev462
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    ??????????????

    • one year ago
  10. CalebBeavers
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    You have to find the slope of both lines, do you know how to do that?

    • one year ago
  11. lvasquev462
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    no it has to be perpendicular

    • one year ago
  12. lvasquev462
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    2/4

    • one year ago
  13. CalebBeavers
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    • one year ago
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  14. lvasquev462
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    I gotten 2/4 and 1

    • one year ago
  15. FaisalAyaz
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    -3/2 and 2/3. 2/3 is negative reciprocal of -3/2.So Lines are perpendicular.

    • one year ago
  16. FaisalAyaz
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    how 2/4 and 1 lvasquev462? when there is a formula to find slope which is: y2-y1/x2-x1. So -4-2/0-(-4)=-6/4=-3/2

    • one year ago
  17. FaisalAyaz
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    Similarly find the slope of second equation.Which I got as 2/3. So (m1)(m2)=-1.Then lines are perpendicular. where m1=slope of first equation and m2=slope of second equation.

    • one year ago
  18. FaisalAyaz
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    You remember formula (m1)(m2)=-1 to check either lines are perpendicular or not.ok

    • one year ago
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