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Point A(–4, 2) is reflected over the line x = 3 to create the point A'. What are the coordinates of A'?
A. (–4, –1)
B. (–4, 8)
C. (–1, 2)
D. (10, 2)

I also have like half an hour to answer it...
I'm also probly having a blonde moment. BUT You can let me know.
Thanks! :)

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(Based on todays review)

  • CmdrWinters

    If x = 3, then the line we are reflecting off of is a vertical line. Therefore, the y-value of our coordinate will remain the same at 2.
    Furthermore, since the line is 3 units to the right of the origin and the origin is 4 places to the right of our reflecting point, then our new point will be 3 + 4 units to the right of the line of reflection.

    3 + 4 = 7

    So our x-coordinate is positive 7.

    The finished resulting coordinate would be (7, 2), however, this is not on the list...
    Anyways, I guess (10, 2) is closest to the answer I got, so maybe that's the right answer. :P
    Anyways, if someone checks this and my math is faulty, please report this answer.
    Hope that helped (even though it didn't) xD

  • yourfavoriteblonde

    The answer is 
    D. (10, 2) 

    because i don't think its going to become a negative after reflection and to fit the needs of the slope (x = 3) ...

    Anyways good luck :)