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cassidyohrt
Group Title
Find the coordinates of the point (5,7) when it is reflected across the line y=11.
 one year ago
 one year ago
cassidyohrt Group Title
Find the coordinates of the point (5,7) when it is reflected across the line y=11.
 one year ago
 one year ago

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punnus Group TitleBest ResponseYou've already chosen the best response.0
Use mid point formula.
 one year ago

cassidyohrt Group TitleBest ResponseYou've already chosen the best response.0
But don't you need more than one coordinate?
 one year ago

punnus Group TitleBest ResponseYou've already chosen the best response.0
mirror being mid point of the line joining the two points. \[\left\{ 5,11 \right\}\] now \[5=\frac{x2x1 }{ 2 }\] and \[11=\frac{ y2y1 }{ 2 }\]
 one year ago

punnus Group TitleBest ResponseYou've already chosen the best response.0
you know x1 and y1 find x2 and y2
 one year ago

punnus Group TitleBest ResponseYou've already chosen the best response.0
Did you get it .
 one year ago

cassidyohrt Group TitleBest ResponseYou've already chosen the best response.0
I completely understand what you're saying, but I honestly have no idea how to solve for x2 and y2. I remember learning this, but I haven't used it in 2 years.
 one year ago

punnus Group TitleBest ResponseYou've already chosen the best response.0
did you get the idea behind mid point
 one year ago

cassidyohrt Group TitleBest ResponseYou've already chosen the best response.0
Yes I do!
 one year ago

punnus Group TitleBest ResponseYou've already chosen the best response.0
Then take the given point as the first point in the case i.e (5,7)
 one year ago

punnus Group TitleBest ResponseYou've already chosen the best response.0
now use x1=5 and y1=7
 one year ago

punnus Group TitleBest ResponseYou've already chosen the best response.0
now use the formula that I have already posted
 one year ago

cassidyohrt Group TitleBest ResponseYou've already chosen the best response.0
Wait, so wouldn't it be (5,7)?
 one year ago

cassidyohrt Group TitleBest ResponseYou've already chosen the best response.0
Nevermind, let me resolve quick.
 one year ago

punnus Group TitleBest ResponseYou've already chosen the best response.0
did you get is answer as (5,15). If not I can give us an another approach
 one year ago
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