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anonymous
 4 years ago
ABCD is a square where A is the point (0,2) and C is the point (8,4). AC and BD are diagonals of the square and they intersect at E. Find the coordinates of B and D.
anonymous
 4 years ago
ABCD is a square where A is the point (0,2) and C is the point (8,4). AC and BD are diagonals of the square and they intersect at E. Find the coordinates of B and D.

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anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0I have found out the coordinate of E which is(4,3) and the equation of Bd and length of AE

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0the ans for the coordinate of B is(5,1) & D is (3,7)

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0but i do not know how to derive at it

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.0the slope form a to c aint 1 so its not a square that situated nicely like that is it?

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.0slope from a to c is: 2/8 = 1/4

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0ABCD is a square in the question

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.0e is a+c/2 for midpoint 8,4 0,2  8,6 /2 = 4,3 e is good

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.0y=4x+4(4)+3 y=4x+19 is the equation of the line perp to ac and thru 4,3

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.0hmmm, so. ; this laptop doesnt make this easier lol

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.0we need a vector that is the length of ae

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0its \[\sqrt{17}\] length of ae

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.08,4 4,3  <4,1>; mag = sqrt(17) that ougt to be fun to play with

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0i cant find a way to find the coordinate through the length of ae LOL

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.0so the vector representation of say eb is our 4/1 slope

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.0<1,4> is out vector ... duh lol

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.0form e move 1,4 and 1,4 to get to the other corners

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0i was tinking of finding the coordinate through the xaxis difference and yaxis difference but it doesnt seem to work

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.04,3 1,4  5,1 4,3 1,4  3,7

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.0took a bit my my brain clicked lol

Hero
 4 years ago
Best ResponseYou've already chosen the best response.1So what were the correct points? For some reason, I'm getting (3,7) and (5,1), but the question is which one is B and which one is D

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Hi im very sorry could you explain what is a vector?

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.0dw:1327672189805:dw

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.0a vector can be represented as a directed line segment; something like an arrow with distance and direction defines a vector

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0how did u arrive at a vector of (1,4)

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.0dw:1327672246456:dw

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.0the slope of a line IS its vector i took the slope of the line from A to C

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.0not drawn correctly in this pic, but same concept nonetheless

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0gradient AC= 1/4 thus the vector is (1,4 ) and gradient AB= 4 vector is (4,1)?

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.0the slope of the line from A to C is: C (8,4) A (0,2)  8, 2 ; slope = 2/8; 1/4 the vector from A to C is then <4 , 1>

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.0a vector is notated the same as a point, except for the < > parts that indicate it as a vector. it is 4 wide and 1 tall; the components of its gradient (slope)

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0How did u get C (8,4) A (0,2)  8, 2

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.0its called subtraction

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.080 , 42 these are the parts of the slope formula

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.0its just easier for me to do them in this way then to try and sort out what goes where when its already done

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.0but to be clear about the vector from A to C, I was a little off in my explaining. The vector from A to C is actually <8,2>; half of this is going to be to the midpoint of E, since a midpoint is in the middle <8,2>  = <4,1>, is our vector from A to E 2

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0i see thank you i will try to understand & do the question first, if I still do not understand could I still look for you? thx::)

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.0i might be around; it might be better to repost a new question, or even this one again so that others have a better chance to see it up on the left and give their views as well :)
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