The equation of the line(s) passing through the point(−3,5) is
A
x=−3
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B
y=−3
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C
x=5
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D
y=5
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Solution
The correct options are Ax=−3 Dy=5 AlineparalleltotheX−axisintersectstheY−axisatthepointP(0,c).IfthelinepassesthroughQ(p,q)then,obviously,c=q.Takethelineasy=mx+c.......(i)whenm=tanθ,θbeingtheanglemadebythelinewiththepositivedirectionofX−axis&c=Y−interceptoftheline.Since(i)isparalleltotheX=axisθ=0o⟹tanθ=0⟹m=0. Thus,theequationoflinewillbey=q So, for a line parallel to x - axis and passing through (-3, 5). The equation will be: y = 5