#0, perpendicular st.lines-their slopes
Posted by kesavan7777 on Mar-22-02 at 08:51 AM
It is a well known fact that product of slopes of two perpendicular lines is -1. Now my question is the above fact should also hold good for x and y axes since they are perpendicular to each other. However it is not so. Because slope of x axis = 0
slope of y axis = 0What is the explanation? R.Kesavan.
kesavan7777@yahoo.com
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