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Tributized

  • 3 years ago

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?

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  1. Tributized
    • 3 years ago
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    http://upload.wikimedia.org/math/9/d/9/9d9e1aa5fab25d8dd659c0fb6e83234b.png That's the slope formula

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

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

  4. countonme123
    • 3 years ago
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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.

  5. Tributized
    • 3 years ago
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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.

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

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

  8. Tributized
    • 3 years ago
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    @Geometry_Hater

  9. Geometry_Hater
    • 3 years ago
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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.

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

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