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Grade 11Discuss with colleagues and IITians

A line L passing through the focus of the parabola y^2=4(x-1) intersects the parabola in two distinct points,Let ‘m’ be the slope of the line L,if
  • m∈(-1,1)
  • m∈(- ∞,1)union(1,∞)
  • m∈R
  • none of these

Profile image of Raviraj singh
11 Years agoGrade 11
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1 Answer

Profile image of Sourabh Singh
9 Years ago
Hii assume the line as y=mx +c and let it pass througth focus .You wll get a relation of values . Now just put those values in the equation and solve .You will get a quaratic and make its D>0 . You will get the answer