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 2 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?
 2 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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Tributized
 2 years ago
Best ResponseYou've already chosen the best response.0http://upload.wikimedia.org/math/9/d/9/9d9e1aa5fab25d8dd659c0fb6e83234b.png That's the slope formula

countonme123
 2 years ago
Best ResponseYou've already chosen the best response.2make intersecting lines on a graph

Tributized
 2 years ago
Best ResponseYou've already chosen the best response.0you mean i should draw it?

countonme123
 2 years ago
Best ResponseYou've already chosen the best response.2yes you have to draw it and then mark the spots. that is the only way we can tell what the lines look like.

Tributized
 2 years ago
Best ResponseYou've already chosen the best response.0dw: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.

Geometry_Hater
 2 years ago
Best ResponseYou've already chosen the best response.1If the lines look like that then they would intersect perpendicularly. So i think you are right.

Tributized
 2 years ago
Best ResponseYou've already chosen the best response.0Wait, so you're saying they WILL intersect?

Geometry_Hater
 2 years ago
Best ResponseYou've already chosen the best response.1They're lines right? So they would go on forever.....Eventually intersecting at some point unless of course they are parallel.

Tributized
 2 years ago
Best ResponseYou've already chosen the best response.0OH LOL I NEVER THOUGHT OF THAT '' Thanks! XD
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