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Re: The line represented by the equation y=4-2x is the perpendi [#permalink]
22 Jun 2013, 11:59
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The line represented by the equation y = 4 – 2x is the perpendicular bisector of line segment RP. If R has the coordinates (4, 1), what are the coordinates of point P? A. (–4, 1) B. (–2, 2) C. (0, 1) D. (0, –1) E. (2, 0)
There is no need of equations to solve this question. Plot the line y = 4 – 2x (just find the x and y intercepts and draw the line through them):
Now, it's easy to SEE that no blue point can be the mirror reflection of R around the line but (0, -1).