the product of slope of
x-axis and y-axis is not -1 .
how it is possible ?
Asked by Sanchit
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1 Answer
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we know that generally the slope means the tan of the angle made by the line with positive x axis
for x axis itself the angle is 0 degress => tan0=0
for y axis the angle is 90 degress => tan 90=infinity
though product of slopes isn't equal to -1
slope of x axis = -1/slope of y axis
(0=-1/infinity)
and slope of y axis=-1/0=infinity
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