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321drew123
Group Title
Alright, freshman accelerated honors geometry problem. I need ton of help. How do you find the distance between a point and a line?
Ex:
Line L contains points (11,1) and (3,11). Point P has coordinates (1,1).
HELP.
 2 years ago
 2 years ago
321drew123 Group Title
Alright, freshman accelerated honors geometry problem. I need ton of help. How do you find the distance between a point and a line? Ex: Line L contains points (11,1) and (3,11). Point P has coordinates (1,1). HELP.
 2 years ago
 2 years ago

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Lukecrayonz Group TitleBest ResponseYou've already chosen the best response.1
Ever consider you shouldn't be in accelerated honors geometry?
 2 years ago

321drew123 Group TitleBest ResponseYou've already chosen the best response.0
No? This is actually the only topic we've covered that I don't understand. I feel like that was an insult...
 2 years ago

estudier Group TitleBest ResponseYou've already chosen the best response.0
Slope of line L gives you slope of perpendicular.....
 2 years ago

yummydum Group TitleBest ResponseYou've already chosen the best response.1
okay so you need to use the distance formula to find the distance between two points :) \[d=\sqrt {(y_2y_1)+(x_2x_1)}\]
 2 years ago

cgreenwade2000 Group TitleBest ResponseYou've already chosen the best response.0
estudier? What?
 2 years ago

Lukecrayonz Group TitleBest ResponseYou've already chosen the best response.1
Find midpoint between the two points on the given line, use distance formula to find the distance between the given point and the midpoint.
 2 years ago

yummydum Group TitleBest ResponseYou've already chosen the best response.1
so using that you would get \[L=\sqrt{(11+1)+(311)}\]
 2 years ago

321drew123 Group TitleBest ResponseYou've already chosen the best response.0
All I know is that I need to find the point the coordinate is closest to on the line, then use the slope to find the length of the line its used to.
 2 years ago

Lukecrayonz Group TitleBest ResponseYou've already chosen the best response.1
No, Yummy, this is the correct way.
 2 years ago

321drew123 Group TitleBest ResponseYou've already chosen the best response.0
yummydum, thats the distance from an endpoint to the point, not the line.
 2 years ago

yummydum Group TitleBest ResponseYou've already chosen the best response.1
okay well go with what sire crayon has to saay
 2 years ago

Lukecrayonz Group TitleBest ResponseYou've already chosen the best response.1
You're finding a farther distance than needed
 2 years ago

yummydum Group TitleBest ResponseYou've already chosen the best response.1
i was getting to that
 2 years ago

estudier Group TitleBest ResponseYou've already chosen the best response.0
http://math.ucsd.edu/~wgarner/math4c/derivations/distance/distptline.htm
 2 years ago

Lukecrayonz Group TitleBest ResponseYou've already chosen the best response.1
http://screensnapr.com/v/14wXYK.jpg
 2 years ago

Lukecrayonz Group TitleBest ResponseYou've already chosen the best response.1
Explanation, answer is 8.6.
 2 years ago

Lukecrayonz Group TitleBest ResponseYou've already chosen the best response.1
@yummydum your distance was 12.17, much farther than the actual distance.
 2 years ago

321drew123 Group TitleBest ResponseYou've already chosen the best response.0
estudier that is not how i remember us learning it in school, we learned a shorter way
 2 years ago

estudier Group TitleBest ResponseYou've already chosen the best response.0
It is short, they are just explaining everything in great detail.
 2 years ago

yummydum Group TitleBest ResponseYou've already chosen the best response.1
again...that wasnt my final answer i was getting to the point...but i see uve got this covered
 2 years ago

Lukecrayonz Group TitleBest ResponseYou've already chosen the best response.1
estudier that makes it look very confusing :P
 2 years ago

321drew123 Group TitleBest ResponseYou've already chosen the best response.0
Ok i think i understand it now. Thanks Luke
 2 years ago
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