1. What is the equation of the line passing through the point (0,4) and making an angle of 45° with the positive x axis?
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By: anil on 05 May 2019 02.15 am
Slope of line making an angle of 45° with the positive x-axis = $$tan(45$$°$$)$$ => Slope, $$m = 1$$ Line is passing through point (0,4) Equation of line having slope $$m$$ and passing through $$(x_1,y_1)$$ is : $$(y-y_1) = m(x-x_1)$$ => $$(y-4) = 1(x-0)$$ => $$y-4=x$$ => $$x-y=-4$$ => Ans - (D)
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