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Tributized Group Title

Graph the points for Line AB and Line CD A(8, 4), B(4, 3), C(4, -9), D(2, -1) Is the measure perpendicular, parallel, or neither? My answer is perpendicular according to the slope formula but when you graph it, it's different. There's no intersection. Help please?

  • 2 years ago
  • 2 years ago

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  1. Tributized Group Title
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    http://upload.wikimedia.org/math/9/d/9/9d9e1aa5fab25d8dd659c0fb6e83234b.png That's the slope formula

    • 2 years ago
  2. countonme123 Group Title
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    make intersecting lines on a graph

    • 2 years ago
  3. Tributized Group Title
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    you mean i should draw it?

    • 2 years ago
  4. countonme123 Group Title
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    yes you have to draw it and then mark the spots. that is the only way we can tell what the lines look like.

    • 2 years ago
  5. Tributized Group Title
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    |dw:1349305969471:dw| This is how the graph looks like, but perpendicular lines have intersection points, this one doesn't. And according to how I solved it (twice) with the slope formula, it's a perpendicular line. But in the graph it shows like this.

    • 2 years ago
  6. Geometry_Hater Group Title
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    If the lines look like that then they would intersect perpendicularly. So i think you are right.

    • 2 years ago
  7. Tributized Group Title
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    Wait, so you're saying they WILL intersect?

    • 2 years ago
  8. Tributized Group Title
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    @Geometry_Hater

    • 2 years ago
  9. Geometry_Hater Group Title
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    They're lines right? So they would go on forever.....Eventually intersecting at some point unless of course they are parallel.

    • 2 years ago
  10. Tributized Group Title
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    OH LOL I NEVER THOUGHT OF THAT '-' Thanks! XD

    • 2 years ago
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