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anonymous
 one year ago
Geometry Problem. Medal & Fan to whoever can help.
anonymous
 one year ago
Geometry Problem. Medal & Fan to whoever can help.

This Question is Closed

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Triangle ABC has been rotated 90° to create triangle DEF. Using the image below, prove that perpendicular lines have opposite and reciprocal slopes. You must show all of your work to receive credit.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0find the slope of both lines

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0If the slope of the first line is 5 then the perpendicular line will be the negative reciprocal which is 1/5

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Find the slope for line BC first

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Do you know how to do that?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0May you remind me how it is done @10115658 . It is getting late where I am currently and my brain is sort of dead. I'm trying to take notes for an exam at the moment so just trying to see how it is solved and write it down.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Pick 2 points on the line

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Or you mean within the line?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0within the line, i'll pick the first one (1,1)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I suppose we can do (2,2) as well?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i don't think that's a point on the line

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0what are the coordinates for point B

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0oh wait you confused me.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0now we use the slope formula, rise/run

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1432956614754:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.01 would be the slope?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0wait, i think i did that wrong too.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0what would be the negative reciprocal of that?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I apologize, I have not had much time to rest so I see myself making a lot of mistakes.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0you don't have to apologize, happens all the time

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok, what is the reciprocal of 4/3?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i'm getting 0.0833333333 according to google for negative reciprocal.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0and then the reciprocal would be 0.08. unless of course there's a formula i'm not remembering.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0you don't need a calculator for this

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Remind me how we determine it then if you would? Haha

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1432956822160:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0.. facepalm 3/4 .75

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0now make it negative

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so would it be the same case for negative reciprocal? 3/4 .75?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok, so now we find the slope of the other line. If the slope is 3/4 then we know the lines are perpendicular

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so we are looking at EF now?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yes. So do the same thing we did before

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0f is 1,1, e is 5, 4. just from that, i already know they are indeed perpendicular.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yep (41)/(5(1)) = 3/4

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Is it that simple to answer the question? Oh my lord, I feel dumb.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0once you understand it its simple, same with all math i guess
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