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Point P is translated through a distance units measured parallel to the line, in the direction of decreasing ordinates, to reach atis the image ofQ unth respect to the line, then coordinates of are
detailed solution
Correct option is D
The equation of a line through P (2, 4) and parallel to y - x - 1 = 0 isx−2cosπ/4=y−4sinπ/4The coordinates of Q are given byx−2cosπ/4=y−4sinπ/4=−32⇒x=−1,y=1Thus, the coordinates of Q are (-1, 1). R s the image of Q with respect to the line y - x -1 = 0.Therefore, coordinates of R are given byx+1−1=y−11=−2(1+1−1)(−1)2+(1)2x+1−1=y−11=−1⇒x=0,y=0Hence, the coordinates of R are (0, 0).Talk to our academic expert!
Similar Questions
The images of on the line is and the image of Q on the line is R. Then the midpoint of PR is
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