Asked by sumana
the equation of a straight line passing through p(3,4) and makes an inclination of 135 with x axis in clockwise direction. then the equation of line is
Answers
Answered by
Reiny
The slope of a line equals tan A, where A is the angle that the line makes with the x-axis
So the slope of your line is tan (-135°) = 1
then y = x + b
but (3,4) lies on it, ...
4 = 3 + b
b = 1
y = x + 1
or
x - y = -1
So the slope of your line is tan (-135°) = 1
then y = x + b
but (3,4) lies on it, ...
4 = 3 + b
b = 1
y = x + 1
or
x - y = -1
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