In ΔABC shown below, point A is at (0, 0), point B is at (x2, 0), point C is at (x1, y1), point D is at (xv1/2, yv1/2) , and point E is at (xv1 + xv2/2, yv1/2)

Question

anonymous · Answer

http://assets.openstudy.com/updates/attachments/52787d36e4b0275c5386693e-%25E2%2599%25AAchibiterasu-1383628104275-03_10_a3.jpg

anonymous · Answer

prove that segment DE is parallel to segment Ab

anonymous · Answer

please help ;-; i need the answer quickly...

anonymous · Answer

since they give you the coordinates, i wonder if it's as simple as just finding the slopes of both of them. Lines with equal slopes are parallel, after all.

well, unless they're actually the same line. but you can prove that's not the case because they are horizontal lines (provable once you've shown their slopes are 0) and their y values are different.

anonymous · Answer

probably*

anonymous · Answer

i don't know how to answer the question and i need to get this last question done before it kicks me of ;-; from the look of the pic the coordinates aren't correct.

anonymous · Answer

im so confused by it! i just need this last question then im done with stupid proofs.

anonymous · Answer

find their slope, use: y2 - y1/x2 - x1

anonymous · Answer

a to c is 2?

anonymous · Answer

you're close i'll draw it out for you

anonymous · Answer

ops i meant b

anonymous · Answer

is it AB= 2 AC=1 CB= -1?

anonymous · Answer

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anonymous · Answer

ok let me explain this to you

anonymous · Answer

okay

anonymous · Answer

remember please be quick

anonymous · Answer

first lets find the slope of the line through the points

anonymous · Answer

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