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cassidyohrt
 2 years ago
Find the coordinates of the point (5,7) when it is reflected across the line y=11.
cassidyohrt
 2 years ago
Find the coordinates of the point (5,7) when it is reflected across the line y=11.

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cassidyohrt
 2 years ago
Best ResponseYou've already chosen the best response.0But don't you need more than one coordinate?

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

punnus
 2 years ago
Best ResponseYou've already chosen the best response.0you know x1 and y1 find x2 and y2

cassidyohrt
 2 years ago
Best ResponseYou've already chosen the best response.0I 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.

punnus
 2 years ago
Best ResponseYou've already chosen the best response.0did you get the idea behind mid point

punnus
 2 years ago
Best ResponseYou've already chosen the best response.0Then take the given point as the first point in the case i.e (5,7)

punnus
 2 years ago
Best ResponseYou've already chosen the best response.0now use the formula that I have already posted

cassidyohrt
 2 years ago
Best ResponseYou've already chosen the best response.0Wait, so wouldn't it be (5,7)?

cassidyohrt
 2 years ago
Best ResponseYou've already chosen the best response.0Nevermind, let me resolve quick.

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