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CBSE Class 10 Answered

Please answer the following question.
Asked by | 28 May, 2008, 04:29: PM
Expert Answer

As the new line is rotated about point B the point B lies on the new line.

Also as the line is rotated 90o the new line is perpendicular to the old line.

Thus (slope of the new line) = -1/(slope of old line)

Find the slope of the old line using the 2 points given and hence find the slope of the new line.

The equation of the new line can be found using the slope-point equation of  a line.

Answered by | 14 Jun, 2008, 12:45: PM
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