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Tati_Lee
Group Title
The coordinates of rectangle ABCD are A(8, 6), B(2, 6), C(2, 3), D(8, 3). What are the coordinates of the point of intersection of the diagonals of the rectangle after the rectangle is reflected across the xaxis?
(5, 1.5)
(5, 4.5)
(5, 4.5)
(5, 1.5)
 2 years ago
 2 years ago
Tati_Lee Group Title
The coordinates of rectangle ABCD are A(8, 6), B(2, 6), C(2, 3), D(8, 3). What are the coordinates of the point of intersection of the diagonals of the rectangle after the rectangle is reflected across the xaxis? (5, 1.5) (5, 4.5) (5, 4.5) (5, 1.5)
 2 years ago
 2 years ago

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Tati_Lee Group TitleBest ResponseYou've already chosen the best response.0
@jim_thompson5910 can you help me
 2 years ago

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.1
First find the midpoint of segment AB
 2 years ago

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.1
Do you know how to do that?
 2 years ago

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.1
so what is the midpoint of AB
 2 years ago

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.1
now find the midpoint of BC
 2 years ago

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.1
and tell me what you get
 2 years ago

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.1
you should have gotten (2,4.5)
 2 years ago

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.1
now call the midpoint of AB point M call the midpoint of BC point N
 2 years ago

Tati_Lee Group TitleBest ResponseYou've already chosen the best response.0
ohh i subtracted the first one instead of adding my bad
 2 years ago

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.1
the diagonals will cross at the point that has the x coordinate of M and the y coordinate of N So the diagonals will cross at (5,4.5)
 2 years ago

Tati_Lee Group TitleBest ResponseYou've already chosen the best response.0
but thats not one of the choices
 2 years ago

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.1
oh, you have to reflect it over the x axis, so the y coordinate will flip in sign and become 4.5
 2 years ago

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.1
so the intersection of the diagonals is (5,4.5)
 2 years ago
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